57668191 has 8 divisors (see below), whose sum is σ = 65973920. Its totient is φ = 49379328.

The previous prime is 57668189. The next prime is 57668197. The reversal of 57668191 is 19186675.

It is a happy number.

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 57668191 - 2¹ = 57668189 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 (57668197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4255 + ... + 11551.

It is an arithmetic number, because the mean of its divisors is an integer number (8246740).

Almost surely, 2^57668191 is an apocalyptic number.

57668191 is a deficient number, since it is larger than the sum of its proper divisors (8305729).

57668191 is a wasteful number, since it uses less digits than its factorization.

57668191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8433.

The product of its digits is 90720, while the sum is 43.

The square root of 57668191 is about 7593.9575321436. The cubic root of 57668191 is about 386.3480957927.

The spelling of 57668191 in words is "fifty-seven million, six hundred sixty-eight thousand, one hundred ninety-one".