45729879 has 12 divisors (see below), whose sum is σ = 66024936. Its totient is φ = 28141152.

The previous prime is 45729869. The next prime is 45729899. The reversal of 45729879 is 97892754.

It is not a de Polignac number, because 45729879 - 2¹⁷ = 45598807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45729869) 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, 44592 + ... + 45605.

It is an arithmetic number, because the mean of its divisors is an integer number (5502078).

Almost surely, 2^45729879 is an apocalyptic number.

45729879 is a deficient number, since it is larger than the sum of its proper divisors (20295057).

45729879 is a wasteful number, since it uses less digits than its factorization.

45729879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90226 (or 90213 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 51.

The square root of 45729879 is about 6762.3870785396. The cubic root of 45729879 is about 357.6020645222.

The spelling of 45729879 in words is "forty-five million, seven hundred twenty-nine thousand, eight hundred seventy-nine".