57889439 has 2 divisors, whose sum is σ = 57889440. Its totient is φ = 57889438.

The previous prime is 57889421. The next prime is 57889453. The reversal of 57889439 is 93498875.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57889439 - 2²⁰ = 56840863 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57889339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28944719 + 28944720.

It is an arithmetic number, because the mean of its divisors is an integer number (28944720).

Almost surely, 2^57889439 is an apocalyptic number.

57889439 is a deficient number, since it is larger than the sum of its proper divisors (1).

57889439 is an equidigital number, since it uses as much as digits as its factorization.

57889439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 53.

The square root of 57889439 is about 7608.5109581310. The cubic root of 57889439 is about 386.8415489967.

The spelling of 57889439 in words is "fifty-seven million, eight hundred eighty-nine thousand, four hundred thirty-nine".