3931437 has 16 divisors (see below), whose sum is σ = 5596992. Its totient is φ = 2446080.

The previous prime is 3931399. The next prime is 3931439. The reversal of 3931437 is 7341393.

It is not a de Polignac number, because 3931437 - 2⁶ = 3931373 is a prime.

3931437 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3931439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7762 + ... + 8252.

It is an arithmetic number, because the mean of its divisors is an integer number (349812).

Almost surely, 2^3931437 is an apocalyptic number.

It is an amenable number.

3931437 is a deficient number, since it is larger than the sum of its proper divisors (1665555).

3931437 is a wasteful number, since it uses less digits than its factorization.

3931437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668.

The product of its digits is 6804, while the sum is 30.

The square root of 3931437 is about 1982.7851623411. The cubic root of 3931437 is about 157.8278983831.

It can be divided in two parts, 393 and 1437, that added together give a triangular number (1830 = T₆₀).

The spelling of 3931437 in words is "three million, nine hundred thirty-one thousand, four hundred thirty-seven".