3721275 has 48 divisors (see below), whose sum is σ = 7068000. Its totient is φ = 1918080.

The previous prime is 3721273. The next prime is 3721279. The reversal of 3721275 is 5721273.

3721275 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3721275 - 2¹ = 3721273 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3721273) 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 47 ways as a sum of consecutive naturals, for example, 24901 + ... + 25049.

It is an arithmetic number, because the mean of its divisors is an integer number (147250).

Almost surely, 2^3721275 is an apocalyptic number.

3721275 is a deficient number, since it is larger than the sum of its proper divisors (3346725).

3721275 is a wasteful number, since it uses less digits than its factorization.

3721275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 194 counting only the distinct ones).

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

The square root of 3721275 is about 1929.0606522347. The cubic root of 3721275 is about 154.9639180667.

It can be divided in two parts, 37 and 21275, that added together give a palindrome (21312).

The spelling of 3721275 in words is "three million, seven hundred twenty-one thousand, two hundred seventy-five".