57447982 has 16 divisors (see below), whose sum is σ = 90921600. Its totient is φ = 27147960.

The previous prime is 57447961. The next prime is 57447983. The reversal of 57447982 is 28974475.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57447983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17119 + ... + 20197.

It is an arithmetic number, because the mean of its divisors is an integer number (5682600).

Almost surely, 2^57447982 is an apocalyptic number.

57447982 is a deficient number, since it is larger than the sum of its proper divisors (33473618).

57447982 is a wasteful number, since it uses less digits than its factorization.

57447982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3591.

The product of its digits is 564480, while the sum is 46.

The square root of 57447982 is about 7579.4447026151. Note that the first 3 decimals coincide. The cubic root of 57447982 is about 385.8557050575.

The spelling of 57447982 in words is "fifty-seven million, four hundred forty-seven thousand, nine hundred eighty-two".