3937531 has 12 divisors (see below), whose sum is σ = 4453488. Its totient is φ = 3473184.

The previous prime is 3937513. The next prime is 3937537. The reversal of 3937531 is 1357393.

It is not a de Polignac number, because 3937531 - 2⁵ = 3937499 is a prime.

It is a super-2 number, since 2×3937531² = 31008300751922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3937493 and 3937502.

It is not an unprimeable number, because it can be changed into a prime (3937537) by changing a digit.

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, 3381 + ... + 4393.

It is an arithmetic number, because the mean of its divisors is an integer number (371124).

Almost surely, 2^3937531 is an apocalyptic number.

3937531 is a deficient number, since it is larger than the sum of its proper divisors (515957).

3937531 is a wasteful number, since it uses less digits than its factorization.

3937531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1049 counting only the distinct ones).

The product of its digits is 8505, while the sum is 31.

The square root of 3937531 is about 1984.3212945488. The cubic root of 3937531 is about 157.9094043470.

The spelling of 3937531 in words is "three million, nine hundred thirty-seven thousand, five hundred thirty-one".