57438079 has 4 divisors (see below), whose sum is σ = 58224976. Its totient is φ = 56651184.

The previous prime is 57438049. The next prime is 57438091. The reversal of 57438079 is 97083475.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 57438079 - 2⁵ = 57438047 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 (57438049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 393339 + ... + 393484.

It is an arithmetic number, because the mean of its divisors is an integer number (14556244).

Almost surely, 2^57438079 is an apocalyptic number.

57438079 is a deficient number, since it is larger than the sum of its proper divisors (786897).

57438079 is an equidigital number, since it uses as much as digits as its factorization.

57438079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786896.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 57438079 is about 7578.7913944111. The cubic root of 57438079 is about 385.8335322530.

The spelling of 57438079 in words is "fifty-seven million, four hundred thirty-eight thousand, seventy-nine".