46691931 has 32 divisors (see below), whose sum is σ = 73801728. Its totient is φ = 25885440.

The previous prime is 46691927. The next prime is 46691941. The reversal of 46691931 is 13919664.

It is not a de Polignac number, because 46691931 - 2² = 46691927 is a prime.

It is a super-2 number, since 2×46691931² = 4360272841017522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 46691931.

It is not an unprimeable number, because it can be changed into a prime (46691941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54055 + ... + 54911.

It is an arithmetic number, because the mean of its divisors is an integer number (2306304).

Almost surely, 2^46691931 is an apocalyptic number.

46691931 is a deficient number, since it is larger than the sum of its proper divisors (27109797).

46691931 is a wasteful number, since it uses less digits than its factorization.

46691931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011.

The product of its digits is 34992, while the sum is 39.

The square root of 46691931 is about 6833.1494202893. The cubic root of 46691931 is about 360.0923914098.

The spelling of 46691931 in words is "forty-six million, six hundred ninety-one thousand, nine hundred thirty-one".