63696361 has 9 divisors (see below), whose sum is σ = 66778621. Its totient is φ = 60751372.

The previous prime is 63696359. The next prime is 63696371. The reversal of 63696361 is 16369636.

The square root of 63696361 is 7981.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 63696361 - 2¹ = 63696359 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63696371) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 183390 + ... + 183736.

Almost surely, 2^63696361 is an apocalyptic number.

63696361 is the 7981-st square number.

63696361 is the 3991-st centered octagonal number.

It is an amenable number.

63696361 is a deficient number, since it is larger than the sum of its proper divisors (3082260).

63696361 is an frugal number, since it uses more digits than its factorization.

63696361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740 (or 370 counting only the distinct ones).

The product of its digits is 104976, while the sum is 40.

The cubic root of 63696361 is about 399.3664157072.

Multiplying 63696361 by its product of digits (104976), we get a square (6686589192336 = 2585844²).

The spelling of 63696361 in words is "sixty-three million, six hundred ninety-six thousand, three hundred sixty-one".