57691198 has 8 divisors (see below), whose sum is σ = 86947560. Its totient is φ = 28708680.

The previous prime is 57691187. The next prime is 57691213. The reversal of 57691198 is 89119675.

It is a happy number.

57691198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67933 + ... + 68776.

It is an arithmetic number, because the mean of its divisors is an integer number (10868445).

Almost surely, 2^57691198 is an apocalyptic number.

57691198 is a deficient number, since it is larger than the sum of its proper divisors (29256362).

57691198 is a wasteful number, since it uses less digits than its factorization.

57691198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136922.

The product of its digits is 136080, while the sum is 46.

The square root of 57691198 is about 7595.4722038857. The cubic root of 57691198 is about 386.3994674338.

The spelling of 57691198 in words is "fifty-seven million, six hundred ninety-one thousand, one hundred ninety-eight".