57899809 has 8 divisors (see below), whose sum is σ = 65909952. Its totient is φ = 50347440.

The previous prime is 57899791. The next prime is 57899833. The reversal of 57899809 is 90899875.

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

It is not a de Polignac number, because 57899809 - 2¹¹ = 57897761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57899809.

It is not an unprimeable number, because it can be changed into a prime (57899839) 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, 114174 + ... + 114679.

It is an arithmetic number, because the mean of its divisors is an integer number (8238744).

Almost surely, 2^57899809 is an apocalyptic number.

It is an amenable number.

57899809 is a deficient number, since it is larger than the sum of its proper divisors (8010143).

57899809 is a wasteful number, since it uses less digits than its factorization.

57899809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228887.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The square root of 57899809 is about 7609.1924012999. The cubic root of 57899809 is about 386.8646465163.

The spelling of 57899809 in words is "fifty-seven million, eight hundred ninety-nine thousand, eight hundred nine".