58287978 has 64 divisors (see below), whose sum is σ = 151683840. Its totient is φ = 16243200.

The previous prime is 58287907. The next prime is 58287989. The reversal of 58287978 is 87978285.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13618 + ... + 17378.

It is an arithmetic number, because the mean of its divisors is an integer number (2370060).

Almost surely, 2^58287978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 58287978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75841920).

58287978 is an abundant number, since it is smaller than the sum of its proper divisors (93395862).

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

58287978 is a wasteful number, since it uses less digits than its factorization.

58287978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820 (or 3814 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 54.

The square root of 58287978 is about 7634.6563773362. The cubic root of 58287978 is about 387.7272545573.

The spelling of 58287978 in words is "fifty-eight million, two hundred eighty-seven thousand, nine hundred seventy-eight".