58638978 has 40 divisors (see below), whose sum is σ = 138317520. Its totient is φ = 18516600.

The previous prime is 58638973. The next prime is 58638989. The reversal of 58638978 is 87983685.

It is a happy number.

58638978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (58638973) 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 19 ways as a sum of consecutive naturals, for example, 6448 + ... + 12603.

It is an arithmetic number, because the mean of its divisors is an integer number (3457938).

Almost surely, 2^58638978 is an apocalyptic number.

58638978 is an abundant number, since it is smaller than the sum of its proper divisors (79678542).

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

58638978 is a wasteful number, since it uses less digits than its factorization.

58638978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19084 (or 19075 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 58638978 is about 7657.6091569105. The cubic root of 58638978 is about 388.5039727684.

It can be divided in two parts, 5863 and 8978, that added together give a palindrome (14841).

The spelling of 58638978 in words is "fifty-eight million, six hundred thirty-eight thousand, nine hundred seventy-eight".