63297972 has 36 divisors (see below), whose sum is σ = 164331076. Its totient is φ = 20528640.

The previous prime is 63297961. The next prime is 63297977. The reversal of 63297972 is 27979236.

It is a happy number.

63297972 is a `hidden beast` number, since 632 + 9 + 7 + 9 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 56610576 + 6687396 = 7524^2 + 2586^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63297977) 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, 22429 + ... + 25092.

Almost surely, 2^63297972 is an apocalyptic number.

It is an amenable number.

63297972 is an abundant number, since it is smaller than the sum of its proper divisors (101033104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63297972 is a wasteful number, since it uses less digits than its factorization.

63297972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47568 (or 47563 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 63297972 is about 7956.0022624431. The cubic root of 63297972 is about 398.5320611454.

The spelling of 63297972 in words is "sixty-three million, two hundred ninety-seven thousand, nine hundred seventy-two".