45639679 has 12 divisors (see below), whose sum is σ = 49559904. Its totient is φ = 41865152.

The previous prime is 45639667. The next prime is 45639701. The reversal of 45639679 is 97693654.

It is not a de Polignac number, because 45639679 - 2⁵ = 45639647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45639619) 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, 190842 + ... + 191080.

It is an arithmetic number, because the mean of its divisors is an integer number (4129992).

Almost surely, 2^45639679 is an apocalyptic number.

45639679 is a deficient number, since it is larger than the sum of its proper divisors (3920225).

45639679 is an equidigital number, since it uses as much as digits as its factorization.

45639679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 303 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 49.

The square root of 45639679 is about 6755.7145439990. The cubic root of 45639679 is about 357.3667921080.

The spelling of 45639679 in words is "forty-five million, six hundred thirty-nine thousand, six hundred seventy-nine".