63699396 has 24 divisors (see below), whose sum is σ = 148861440. Its totient is φ = 21200352.

The previous prime is 63699371. The next prime is 63699407. The reversal of 63699396 is 69399636.

It is a super-2 number, since 2×63699396² = 8115226101529632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4765 + ... + 12251.

It is an arithmetic number, because the mean of its divisors is an integer number (6202560).

Almost surely, 2^63699396 is an apocalyptic number.

It is an amenable number.

63699396 is an abundant number, since it is smaller than the sum of its proper divisors (85162044).

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

63699396 is a wasteful number, since it uses less digits than its factorization.

63699396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8203 (or 8201 counting only the distinct ones).

The product of its digits is 1417176, while the sum is 51.

The square root of 63699396 is about 7981.1901368154. The cubic root of 63699396 is about 399.3727586014.

The spelling of 63699396 in words is "sixty-three million, six hundred ninety-nine thousand, three hundred ninety-six".