45977878 has 8 divisors (see below), whose sum is σ = 69211368. Its totient is φ = 22907424.

The previous prime is 45977857. The next prime is 45977881. The reversal of 45977878 is 87877954.

It is a happy number.

45977878 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 a super-2 number, since 2×45977878² = 4227930530765768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 40051 + ... + 41182.

It is an arithmetic number, because the mean of its divisors is an integer number (8651421).

Almost surely, 2^45977878 is an apocalyptic number.

45977878 is a deficient number, since it is larger than the sum of its proper divisors (23233490).

45977878 is a wasteful number, since it uses less digits than its factorization.

45977878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81518.

The product of its digits is 3951360, while the sum is 55.

The square root of 45977878 is about 6780.6989315262. The cubic root of 45977878 is about 358.2473400764.

The spelling of 45977878 in words is "forty-five million, nine hundred seventy-seven thousand, eight hundred seventy-eight".