57978859 has 8 divisors (see below), whose sum is σ = 60156000. Its totient is φ = 55813632.

The previous prime is 57978847. The next prime is 57978881. The reversal of 57978859 is 95887975.

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

It is not a de Polignac number, because 57978859 - 2¹¹ = 57976811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57978829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7627 + ... + 13195.

It is an arithmetic number, because the mean of its divisors is an integer number (7519500).

Almost surely, 2^57978859 is an apocalyptic number.

57978859 is a deficient number, since it is larger than the sum of its proper divisors (2177141).

57978859 is a wasteful number, since it uses less digits than its factorization.

57978859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5957.

The product of its digits is 6350400, while the sum is 58.

The square root of 57978859 is about 7614.3850047131. The cubic root of 57978859 is about 387.0406271962.

The spelling of 57978859 in words is "fifty-seven million, nine hundred seventy-eight thousand, eight hundred fifty-nine".