63712005 has 48 divisors (see below), whose sum is σ = 125582400. Its totient is φ = 27406848.

The previous prime is 63711983. The next prime is 63712057. The reversal of 63712005 is 50021736.

It is not a de Polignac number, because 63712005 - 2⁶ = 63711941 is a prime.

It is a super-2 number, since 2×63712005² = 8118439162240050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9946 + ... + 15044.

It is an arithmetic number, because the mean of its divisors is an integer number (2616300).

Almost surely, 2^63712005 is an apocalyptic number.

It is an amenable number.

63712005 is a deficient number, since it is larger than the sum of its proper divisors (61870395).

63712005 is a wasteful number, since it uses less digits than its factorization.

63712005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138 (or 5131 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 63712005 is about 7981.9800175145. The cubic root of 63712005 is about 399.3991081913.

The spelling of 63712005 in words is "sixty-three million, seven hundred twelve thousand, five".