931966938 has 64 divisors (see below), whose sum is σ = 2371557120. Its totient is φ = 265752576.

The previous prime is 931966921. The next prime is 931966943. The reversal of 931966938 is 839669139.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215970 + ... + 220242.

It is an arithmetic number, because the mean of its divisors is an integer number (37055580).

Almost surely, 2^931966938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 931966938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1185778560).

931966938 is an abundant number, since it is smaller than the sum of its proper divisors (1439590182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

931966938 is a wasteful number, since it uses less digits than its factorization.

931966938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4868 (or 4862 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 54.

The square root of 931966938 is about 30528.1335492362. The cubic root of 931966938 is about 976.7876694047.

The spelling of 931966938 in words is "nine hundred thirty-one million, nine hundred sixty-six thousand, nine hundred thirty-eight".