57838661 has 4 divisors (see below), whose sum is σ = 57868512. Its totient is φ = 57808812.

The previous prime is 57838657. The next prime is 57838663. The reversal of 57838661 is 16683875.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57838661 - 2² = 57838657 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 (57838663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11801 + ... + 15966.

It is an arithmetic number, because the mean of its divisors is an integer number (14467128).

Almost surely, 2^57838661 is an apocalyptic number.

It is an amenable number.

57838661 is a deficient number, since it is larger than the sum of its proper divisors (29851).

57838661 is a wasteful number, since it uses less digits than its factorization.

57838661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29850.

The product of its digits is 241920, while the sum is 44.

The square root of 57838661 is about 7605.1733050602. The cubic root of 57838661 is about 386.7284092678.

The spelling of 57838661 in words is "fifty-seven million, eight hundred thirty-eight thousand, six hundred sixty-one".