57789966 has 16 divisors (see below), whose sum is σ = 124470864. Its totient is φ = 17781504.

The previous prime is 57789959. The next prime is 57790013. The reversal of 57789966 is 66998775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370371 + ... + 370526.

It is an arithmetic number, because the mean of its divisors is an integer number (7779429).

Almost surely, 2^57789966 is an apocalyptic number.

57789966 is an abundant number, since it is smaller than the sum of its proper divisors (66680898).

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

57789966 is a wasteful number, since it uses less digits than its factorization.

57789966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740915.

The product of its digits is 5715360, while the sum is 57.

The square root of 57789966 is about 7601.9711917370. The cubic root of 57789966 is about 386.6198485063.

The spelling of 57789966 in words is "fifty-seven million, seven hundred eighty-nine thousand, nine hundred sixty-six".