3918031 has 12 divisors (see below), whose sum is σ = 4346328. Its totient is φ = 3510864.

The previous prime is 3918029. The next prime is 3918037. The reversal of 3918031 is 1308193.

It is not a de Polignac number, because 3918031 - 2¹ = 3918029 is a prime.

It is a super-2 number, since 2×3918031² = 30701933833922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3917987 and 3918005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3918037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23956 + ... + 24118.

It is an arithmetic number, because the mean of its divisors is an integer number (362194).

Almost surely, 2^3918031 is an apocalyptic number.

3918031 is a deficient number, since it is larger than the sum of its proper divisors (428297).

3918031 is a wasteful number, since it uses less digits than its factorization.

3918031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 3918031 is about 1979.4016772752. The cubic root of 3918031 is about 157.6482990541.

The spelling of 3918031 in words is "three million, nine hundred eighteen thousand, thirty-one".