57798909 has 12 divisors (see below), whose sum is σ = 95414176. Its totient is φ = 33027912.

The previous prime is 57798901. The next prime is 57798919. The reversal of 57798909 is 90989775.

57798909 = 187² + 188² + ... + 564².

It is not a de Polignac number, because 57798909 - 2³ = 57798901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57798901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 458659 + ... + 458784.

Almost surely, 2^57798909 is an apocalyptic number.

It is an amenable number.

57798909 is a deficient number, since it is larger than the sum of its proper divisors (37615267).

57798909 is a wasteful number, since it uses less digits than its factorization.

57798909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917456 (or 917453 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The square root of 57798909 is about 7602.5593716853. The cubic root of 57798909 is about 386.6397906244.

The spelling of 57798909 in words is "fifty-seven million, seven hundred ninety-eight thousand, nine hundred nine".