45877989 has 8 divisors (see below), whose sum is σ = 64390240. Its totient is φ = 28975536.

The previous prime is 45877963. The next prime is 45878003. The reversal of 45877989 is 98977854.

45877989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45877989 - 2⁵ = 45877957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 804877 = 45877989 / (4 + 5 + 8 + 7 + 7 + 9 + 8 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45877189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402382 + ... + 402495.

It is an arithmetic number, because the mean of its divisors is an integer number (8048780).

Almost surely, 2^45877989 is an apocalyptic number.

It is an amenable number.

45877989 is a deficient number, since it is larger than the sum of its proper divisors (18512251).

45877989 is a wasteful number, since it uses less digits than its factorization.

45877989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804899.

The product of its digits is 5080320, while the sum is 57.

The square root of 45877989 is about 6773.3292404843. The cubic root of 45877989 is about 357.9877158379.

The spelling of 45877989 in words is "forty-five million, eight hundred seventy-seven thousand, nine hundred eighty-nine".