63997452 has 84 divisors (see below), whose sum is σ = 177931656. Its totient is φ = 20062080.

The previous prime is 63997441. The next prime is 63997481. The reversal of 63997452 is 25479936.

It is a happy number.

63997452 is a `hidden beast` number, since 639 + 9 + 7 + 4 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 63997398 and 63997407.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 48927 + ... + 50217.

It is an arithmetic number, because the mean of its divisors is an integer number (2118234).

Almost surely, 2^63997452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63997452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88965828).

63997452 is an abundant number, since it is smaller than the sum of its proper divisors (113934204).

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

63997452 is a wasteful number, since it uses less digits than its factorization.

63997452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330 (or 1313 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 63997452 is about 7999.8407484149. The cubic root of 63997452 is about 399.9946915962.

The spelling of 63997452 in words is "sixty-three million, nine hundred ninety-seven thousand, four hundred fifty-two".