3257172 has 42 divisors (see below), whose sum is σ = 8553818. Its totient is φ = 1084752.

The previous prime is 3257171. The next prime is 3257173. The reversal of 3257172 is 2717523.

3257172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3257171) and next prime (3257173).

It can be written as a sum of positive squares in only one way, i.e., 1971216 + 1285956 = 1404^2 + 1134^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3257171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2358 + ... + 3474.

Almost surely, 2^3257172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3257172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4276909).

3257172 is an abundant number, since it is smaller than the sum of its proper divisors (5296646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3257172 is a wasteful number, since it uses less digits than its factorization.

3257172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1122 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 3257172 is about 1804.7636964434. The cubic root of 3257172 is about 148.2336824555.

The spelling of 3257172 in words is "three million, two hundred fifty-seven thousand, one hundred seventy-two".