57423869 has 4 divisors (see below), whose sum is σ = 57721596. Its totient is φ = 57126144.

The previous prime is 57423859. The next prime is 57423881. The reversal of 57423869 is 96832475.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4687225 + 52736644 = 2165^2 + 7262^2 .

It is a cyclic number.

It is not a de Polignac number, because 57423869 - 2¹² = 57419773 is a prime.

It is a super-2 number, since 2×57423869² = 6595001461858322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57423859) 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, 148574 + ... + 148959.

It is an arithmetic number, because the mean of its divisors is an integer number (14430399).

Almost surely, 2^57423869 is an apocalyptic number.

It is an amenable number.

57423869 is a deficient number, since it is larger than the sum of its proper divisors (297727).

57423869 is a wasteful number, since it uses less digits than its factorization.

57423869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297726.

The product of its digits is 362880, while the sum is 44.

The square root of 57423869 is about 7577.8538518501. The cubic root of 57423869 is about 385.8017116281.

The spelling of 57423869 in words is "fifty-seven million, four hundred twenty-three thousand, eight hundred sixty-nine".