48615978 has 16 divisors (see below), whose sum is σ = 97315200. Its totient is φ = 16191456.

The previous prime is 48615953. The next prime is 48615979. The reversal of 48615978 is 87951684.

48615978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (48615979) 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, 6198 + ... + 11646.

It is an arithmetic number, because the mean of its divisors is an integer number (6082200).

Almost surely, 2^48615978 is an apocalyptic number.

48615978 is an abundant number, since it is smaller than the sum of its proper divisors (48699222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

48615978 is a wasteful number, since it uses less digits than its factorization.

48615978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6941.

The product of its digits is 483840, while the sum is 48.

The square root of 48615978 is about 6972.5159017388. The cubic root of 48615978 is about 364.9721077078.

The spelling of 48615978 in words is "forty-eight million, six hundred fifteen thousand, nine hundred seventy-eight".