99697636 has 24 divisors (see below), whose sum is σ = 184294880. Its totient is φ = 47060352.

The previous prime is 99697583. The next prime is 99697687. The reversal of 99697636 is 63679699.

It is a happy number.

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, 21196 + ... + 25468.

Almost surely, 2^99697636 is an apocalyptic number.

It is an amenable number.

99697636 is a deficient number, since it is larger than the sum of its proper divisors (84597244).

99697636 is a wasteful number, since it uses less digits than its factorization.

99697636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4603 (or 4601 counting only the distinct ones).

The product of its digits is 3306744, while the sum is 55.

The square root of 99697636 is about 9984.8703546916. The cubic root of 99697636 is about 463.6905946094.

The spelling of 99697636 in words is "ninety-nine million, six hundred ninety-seven thousand, six hundred thirty-six".