3975237 has 56 divisors (see below), whose sum is σ = 7344960. Its totient is φ = 2099520.

The previous prime is 3975217. The next prime is 3975239. The reversal of 3975237 is 7325793.

It is a happy number.

3975237 is nontrivially palindromic in base 11.

It is not a de Polignac number, because 3975237 - 2⁶ = 3975173 is a prime.

Its product of digits (39690) is a multiple of the sum of its prime divisors (70).

3975237 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3975239) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 96937 + ... + 96977.

It is an arithmetic number, because the mean of its divisors is an integer number (131160).

Almost surely, 2^3975237 is an apocalyptic number.

It is an amenable number.

3975237 is a deficient number, since it is larger than the sum of its proper divisors (3369723).

3975237 is an equidigital number, since it uses as much as digits as its factorization.

3975237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 70 counting only the distinct ones).

The product of its digits is 39690, while the sum is 36.

The square root of 3975237 is about 1993.7996388805. The cubic root of 3975237 is about 158.4118534518.

The spelling of 3975237 in words is "three million, nine hundred seventy-five thousand, two hundred thirty-seven".