57993309 has 12 divisors (see below), whose sum is σ = 91383552. Its totient is φ = 35147400.

The previous prime is 57993277. The next prime is 57993329. The reversal of 57993309 is 90339975.

It is not a de Polignac number, because 57993309 - 2⁵ = 57993277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57993329) 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, 292797 + ... + 292994.

It is an arithmetic number, because the mean of its divisors is an integer number (7615296).

Almost surely, 2^57993309 is an apocalyptic number.

It is an amenable number.

57993309 is a deficient number, since it is larger than the sum of its proper divisors (33390243).

57993309 is a wasteful number, since it uses less digits than its factorization.

57993309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585808 (or 585805 counting only the distinct ones).

The product of its (nonzero) digits is 229635, while the sum is 45.

The square root of 57993309 is about 7615.3338075228. Note that the first 3 decimals coincide. The cubic root of 57993309 is about 387.0727784124.

The spelling of 57993309 in words is "fifty-seven million, nine hundred ninety-three thousand, three hundred nine".