63722394 has 12 divisors (see below), whose sum is σ = 138065226. Its totient is φ = 21240792.

The previous prime is 63722363. The next prime is 63722401. The reversal of 63722394 is 49322736.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 59861169 + 3861225 = 7737^2 + 1965^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1770049 + ... + 1770084.

Almost surely, 2^63722394 is an apocalyptic number.

63722394 is an abundant number, since it is smaller than the sum of its proper divisors (74342832).

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

63722394 is a wasteful number, since it uses less digits than its factorization.

63722394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540141 (or 3540138 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 63722394 is about 7982.6307693642. The cubic root of 63722394 is about 399.4208159360.

The spelling of 63722394 in words is "sixty-three million, seven hundred twenty-two thousand, three hundred ninety-four".