45977931 has 6 divisors (see below), whose sum is σ = 66412580. Its totient is φ = 30651948.

The previous prime is 45977887. The next prime is 45977947. The reversal of 45977931 is 13977954.

It is not a de Polignac number, because 45977931 - 2⁷ = 45977803 is a prime.

It is a super-2 number, since 2×45977931² = 4227940278081522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45977431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2554321 + ... + 2554338.

Almost surely, 2^45977931 is an apocalyptic number.

45977931 is a deficient number, since it is larger than the sum of its proper divisors (20434649).

45977931 is a wasteful number, since it uses less digits than its factorization.

45977931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5108665 (or 5108662 counting only the distinct ones).

The product of its digits is 238140, while the sum is 45.

The square root of 45977931 is about 6780.7028396767. The cubic root of 45977931 is about 358.2474777303.

The spelling of 45977931 in words is "forty-five million, nine hundred seventy-seven thousand, nine hundred thirty-one".