57645997 has 8 divisors (see below), whose sum is σ = 63142200. Its totient is φ = 52383744.

The previous prime is 57645989. The next prime is 57646003. The reversal of 57645997 is 79954675.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21031396 + 36614601 = 4586^2 + 6051^2 .

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

It is not a de Polignac number, because 57645997 - 2³ = 57645989 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 (57645937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57972 + ... + 58957.

It is an arithmetic number, because the mean of its divisors is an integer number (7892775).

Almost surely, 2^57645997 is an apocalyptic number.

It is an amenable number.

57645997 is a deficient number, since it is larger than the sum of its proper divisors (5496203).

57645997 is a wasteful number, since it uses less digits than its factorization.

57645997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116975.

The product of its digits is 2381400, while the sum is 52.

The square root of 57645997 is about 7592.4960981221. The cubic root of 57645997 is about 386.2985265257.

The spelling of 57645997 in words is "fifty-seven million, six hundred forty-five thousand, nine hundred ninety-seven".