57840479 has 2 divisors, whose sum is σ = 57840480. Its totient is φ = 57840478.

The previous prime is 57840457. The next prime is 57840481. The reversal of 57840479 is 97404875.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57840479 is a prime.

It is a super-3 number, since 3×57840479³ (a number of 24 digits) contains 333 as substring.

Together with 57840481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57840439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28920239 + 28920240.

It is an arithmetic number, because the mean of its divisors is an integer number (28920240).

Almost surely, 2^57840479 is an apocalyptic number.

57840479 is a deficient number, since it is larger than the sum of its proper divisors (1).

57840479 is an equidigital number, since it uses as much as digits as its factorization.

57840479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 57840479 is about 7605.2928280244. The cubic root of 57840479 is about 386.7324611417.

The spelling of 57840479 in words is "fifty-seven million, eight hundred forty thousand, four hundred seventy-nine".