99683649 has 32 divisors (see below), whose sum is σ = 160876800. Its totient is φ = 60635520.

The previous prime is 99683641. The next prime is 99683653. The reversal of 99683649 is 94638699.

It is a happy number.

It is not a de Polignac number, because 99683649 - 2³ = 99683641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99683595 and 99683604.

It is not an unprimeable number, because it can be changed into a prime (99683641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29644 + ... + 32834.

It is an arithmetic number, because the mean of its divisors is an integer number (5027400).

Almost surely, 2^99683649 is an apocalyptic number.

It is an amenable number.

99683649 is a deficient number, since it is larger than the sum of its proper divisors (61193151).

99683649 is a wasteful number, since it uses less digits than its factorization.

99683649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3302 (or 3296 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 99683649 is about 9984.1699204290. The cubic root of 99683649 is about 463.6689092284.

The spelling of 99683649 in words is "ninety-nine million, six hundred eighty-three thousand, six hundred forty-nine".