57789905 has 4 divisors (see below), whose sum is σ = 69347892. Its totient is φ = 46231920.

The previous prime is 57789899. The next prime is 57789911. The reversal of 57789905 is 50998775.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (57789899) and next prime (57789911).

It can be written as a sum of positive squares in 2 ways, for example, as 27836176 + 29953729 = 5276^2 + 5473^2 .

It is not a de Polignac number, because 57789905 - 2¹² = 57785809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5778986 + ... + 5778995.

It is an arithmetic number, because the mean of its divisors is an integer number (17336973).

Almost surely, 2^57789905 is an apocalyptic number.

It is an amenable number.

57789905 is a deficient number, since it is larger than the sum of its proper divisors (11557987).

57789905 is a wasteful number, since it uses less digits than its factorization.

57789905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11557986.

The product of its (nonzero) digits is 793800, while the sum is 50.

The square root of 57789905 is about 7601.9671796187. The cubic root of 57789905 is about 386.6197124745.

The spelling of 57789905 in words is "fifty-seven million, seven hundred eighty-nine thousand, nine hundred five".