63007997 has 8 divisors (see below), whose sum is σ = 67929120. Its totient is φ = 58097520.

The previous prime is 63007957. The next prime is 63008041. The reversal of 63007997 is 79970036.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-63007997 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 (63007907) 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, 13154 + ... + 17292.

It is an arithmetic number, because the mean of its divisors is an integer number (8491140).

Almost surely, 2^63007997 is an apocalyptic number.

It is an amenable number.

63007997 is a deficient number, since it is larger than the sum of its proper divisors (4921123).

63007997 is a wasteful number, since it uses less digits than its factorization.

63007997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323.

The product of its (nonzero) digits is 71442, while the sum is 41.

The square root of 63007997 is about 7937.7576808567. The cubic root of 63007997 is about 397.9225563315.

It can be divided in two parts, 6 and 3007997, that added together give a palindrome (3008003).

The spelling of 63007997 in words is "sixty-three million, seven thousand, nine hundred ninety-seven".