3951031 has 16 divisors (see below), whose sum is σ = 4840960. Its totient is φ = 3149280.

The previous prime is 3951023. The next prime is 3951071. The reversal of 3951031 is 1301593.

It is a 9-Lehmer number, since φ(3951031) divides (3951031-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 3951031 - 2³ = 3951023 is a prime.

It is a super-2 number, since 2×3951031² = 31221291925922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3950993 and 3951011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3951001) 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 15 ways as a sum of consecutive naturals, for example, 7870 + ... + 8356.

It is an arithmetic number, because the mean of its divisors is an integer number (302560).

Almost surely, 2^3951031 is an apocalyptic number.

3951031 is a deficient number, since it is larger than the sum of its proper divisors (889929).

3951031 is a wasteful number, since it uses less digits than its factorization.

3951031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 3951031 is about 1987.7200507114. The cubic root of 3951031 is about 158.0896649630.

The spelling of 3951031 in words is "three million, nine hundred fifty-one thousand, thirty-one".