57891693 has 8 divisors (see below), whose sum is σ = 77744800. Its totient is φ = 38316528.

The previous prime is 57891677. The next prime is 57891707. The reversal of 57891693 is 39619875.

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

It is not a de Polignac number, because 57891693 - 2⁴ = 57891677 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 (57891653) 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 7 ways as a sum of consecutive naturals, for example, 68998 + ... + 69831.

It is an arithmetic number, because the mean of its divisors is an integer number (9718100).

Almost surely, 2^57891693 is an apocalyptic number.

It is an amenable number.

57891693 is a deficient number, since it is larger than the sum of its proper divisors (19853107).

57891693 is a wasteful number, since it uses less digits than its factorization.

57891693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138971.

The product of its digits is 408240, while the sum is 48.

The square root of 57891693 is about 7608.6590802848. The cubic root of 57891693 is about 386.8465696565.

The spelling of 57891693 in words is "fifty-seven million, eight hundred ninety-one thousand, six hundred ninety-three".