57873913 has 4 divisors (see below), whose sum is σ = 57937140. Its totient is φ = 57810688.

The previous prime is 57873857. The next prime is 57873923. The reversal of 57873913 is 31937875.

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 7634169 + 50239744 = 2763^2 + 7088^2 .

It is a cyclic number.

It is not a de Polignac number, because 57873913 - 2¹³ = 57865721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57873913.

It is not an unprimeable number, because it can be changed into a prime (57873923) 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, 30220 + ... + 32077.

It is an arithmetic number, because the mean of its divisors is an integer number (14484285).

Almost surely, 2^57873913 is an apocalyptic number.

It is an amenable number.

57873913 is a deficient number, since it is larger than the sum of its proper divisors (63227).

57873913 is an equidigital number, since it uses as much as digits as its factorization.

57873913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63226.

The product of its digits is 158760, while the sum is 43.

The square root of 57873913 is about 7607.4905849432. The cubic root of 57873913 is about 386.8069621531.

The spelling of 57873913 in words is "fifty-seven million, eight hundred seventy-three thousand, nine hundred thirteen".