63870057 has 12 divisors (see below), whose sum is σ = 96268224. Its totient is φ = 40728600.

The previous prime is 63870047. The next prime is 63870089. The reversal of 63870057 is 75007836.

It is not a de Polignac number, because 63870057 - 2⁴ = 63870041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63870017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154069 + ... + 154482.

It is an arithmetic number, because the mean of its divisors is an integer number (8022352).

Almost surely, 2^63870057 is an apocalyptic number.

It is an amenable number.

63870057 is a deficient number, since it is larger than the sum of its proper divisors (32398167).

63870057 is a wasteful number, since it uses less digits than its factorization.

63870057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308580 (or 308577 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 63870057 is about 7991.8744359506. The cubic root of 63870057 is about 399.7291019938.

The spelling of 63870057 in words is "sixty-three million, eight hundred seventy thousand, fifty-seven".