3972357 has 24 divisors (see below), whose sum is σ = 6007040. Its totient is φ = 2527200.

The previous prime is 3972343. The next prime is 3972359. The reversal of 3972357 is 7532793.

It is a happy number.

3972357 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 3972357 - 2⁴ = 3972341 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

Its product of digits (39690) is a multiple of the sum of its prime divisors (270).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3972359) 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 23 ways as a sum of consecutive naturals, for example, 26232 + ... + 26382.

Almost surely, 2^3972357 is an apocalyptic number.

3972357 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3972357 is a deficient number, since it is larger than the sum of its proper divisors (2034683).

3972357 is a wasteful number, since it uses less digits than its factorization.

3972357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 270 counting only the distinct ones).

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

The square root of 3972357 is about 1993.0772689487. The cubic root of 3972357 is about 158.3735885334.

The spelling of 3972357 in words is "three million, nine hundred seventy-two thousand, three hundred fifty-seven".