57699009 has 12 divisors (see below), whose sum is σ = 86217300. Its totient is φ = 37139424.

The previous prime is 57699007. The next prime is 57699011. The reversal of 57699009 is 90099675.

It is an interprime number because it is at equal distance from previous prime (57699007) and next prime (57699011).

It can be written as a sum of positive squares in 2 ways, for example, as 48608784 + 9090225 = 6972^2 + 3015^2 .

It is not a de Polignac number, because 57699009 - 2¹ = 57699007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57699007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110274 + ... + 110795.

It is an arithmetic number, because the mean of its divisors is an integer number (7184775).

Almost surely, 2^57699009 is an apocalyptic number.

It is an amenable number.

57699009 is a deficient number, since it is larger than the sum of its proper divisors (28518291).

57699009 is a wasteful number, since it uses less digits than its factorization.

57699009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221104 (or 221101 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 57699009 is about 7595.9863743954. The cubic root of 57699009 is about 386.4169052761.

The spelling of 57699009 in words is "fifty-seven million, six hundred ninety-nine thousand, nine".