57889213 has 4 divisors (see below), whose sum is σ = 58311900. Its totient is φ = 57466528.

The previous prime is 57889187. The next prime is 57889217. The reversal of 57889213 is 31298875.

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 50722884 + 7166329 = 7122^2 + 2677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57889213 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 57889213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57889217) 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, 211138 + ... + 211411.

It is an arithmetic number, because the mean of its divisors is an integer number (14577975).

Almost surely, 2^57889213 is an apocalyptic number.

It is an amenable number.

57889213 is a deficient number, since it is larger than the sum of its proper divisors (422687).

57889213 is a wasteful number, since it uses less digits than its factorization.

57889213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422686.

The product of its digits is 120960, while the sum is 43.

The square root of 57889213 is about 7608.4961063275. The cubic root of 57889213 is about 386.8410455871.

The spelling of 57889213 in words is "fifty-seven million, eight hundred eighty-nine thousand, two hundred thirteen".