3501972 has 36 divisors (see below), whose sum is σ = 8959860. Its totient is φ = 1153152.

The previous prime is 3501961. The next prime is 3501989. The reversal of 3501972 is 2791053.

It can be written as a sum of positive squares in 2 ways, for example, as 2322576 + 1179396 = 1524^2 + 1086^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2658 + ... + 3750.

It is an arithmetic number, because the mean of its divisors is an integer number (248885).

Almost surely, 2^3501972 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 3501972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4479930).

3501972 is an abundant number, since it is smaller than the sum of its proper divisors (5457888).

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

3501972 is a wasteful number, since it uses less digits than its factorization.

3501972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192 (or 1187 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 3501972 is about 1871.3556583397. The cubic root of 3501972 is about 151.8579582565.

The spelling of 3501972 in words is "three million, five hundred one thousand, nine hundred seventy-two".