45787917 has 32 divisors (see below), whose sum is σ = 74391552. Its totient is φ = 24482304.

The previous prime is 45787913. The next prime is 45787927. The reversal of 45787917 is 71978754.

It is not a de Polignac number, because 45787917 - 2² = 45787913 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45787913) 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, 21693 + ... + 23709.

It is an arithmetic number, because the mean of its divisors is an integer number (2324736).

Almost surely, 2^45787917 is an apocalyptic number.

45787917 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

45787917 is a deficient number, since it is larger than the sum of its proper divisors (28603635).

45787917 is a wasteful number, since it uses less digits than its factorization.

45787917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097.

The product of its digits is 493920, while the sum is 48.

The square root of 45787917 is about 6766.6769540152. The cubic root of 45787917 is about 357.7532839224.

The spelling of 45787917 in words is "forty-five million, seven hundred eighty-seven thousand, nine hundred seventeen".