57393217 has 8 divisors (see below), whose sum is σ = 65699712. Its totient is φ = 49113600.

The previous prime is 57393209. The next prime is 57393227. The reversal of 57393217 is 71239375.

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

It is a cyclic number.

It is not a de Polignac number, because 57393217 - 2³ = 57393209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57393227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1909 + ... + 10882.

It is an arithmetic number, because the mean of its divisors is an integer number (8212464).

Almost surely, 2^57393217 is an apocalyptic number.

It is an amenable number.

57393217 is a deficient number, since it is larger than the sum of its proper divisors (8306495).

57393217 is a wasteful number, since it uses less digits than its factorization.

57393217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13439.

The product of its digits is 39690, while the sum is 37.

The square root of 57393217 is about 7575.8311095219. The cubic root of 57393217 is about 385.7330543549.

The spelling of 57393217 in words is "fifty-seven million, three hundred ninety-three thousand, two hundred seventeen".