63604971 has 12 divisors (see below), whose sum is σ = 92492400. Its totient is φ = 42117840.

The previous prime is 63604967. The next prime is 63604993. The reversal of 63604971 is 17940636.

It is not a de Polignac number, because 63604971 - 2² = 63604967 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (63604271) 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, 22375 + ... + 25056.

It is an arithmetic number, because the mean of its divisors is an integer number (7707700).

Almost surely, 2^63604971 is an apocalyptic number.

63604971 is a deficient number, since it is larger than the sum of its proper divisors (28887429).

63604971 is a wasteful number, since it uses less digits than its factorization.

63604971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47586 (or 47583 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 63604971 is about 7975.2724718344. The cubic root of 63604971 is about 399.1753238583.

The spelling of 63604971 in words is "sixty-three million, six hundred four thousand, nine hundred seventy-one".