63157707 has 12 divisors (see below), whose sum is σ = 93169440. Its totient is φ = 41209008.

The previous prime is 63157681. The next prime is 63157709. The reversal of 63157707 is 70775136.

It is not a de Polignac number, because 63157707 - 2¹² = 63153611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63157709) 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, 74232 + ... + 75077.

It is an arithmetic number, because the mean of its divisors is an integer number (7764120).

Almost surely, 2^63157707 is an apocalyptic number.

63157707 is a deficient number, since it is larger than the sum of its proper divisors (30011733).

63157707 is a wasteful number, since it uses less digits than its factorization.

63157707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149362 (or 149359 counting only the distinct ones).

The product of its (nonzero) digits is 30870, while the sum is 36.

The square root of 63157707 is about 7947.1823308642. The cubic root of 63157707 is about 398.2374680262.

The spelling of 63157707 in words is "sixty-three million, one hundred fifty-seven thousand, seven hundred seven".