99496809 has 16 divisors (see below), whose sum is σ = 149605440. Its totient is φ = 65340000.

The previous prime is 99496799. The next prime is 99496819. The reversal of 99496809 is 90869499.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99496799) and next prime (99496819).

It is not a de Polignac number, because 99496809 - 2⁷ = 99496681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99496819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25692 + ... + 29309.

It is an arithmetic number, because the mean of its divisors is an integer number (9350340).

Almost surely, 2^99496809 is an apocalyptic number.

It is an amenable number.

99496809 is a deficient number, since it is larger than the sum of its proper divisors (50108631).

99496809 is a wasteful number, since it uses less digits than its factorization.

99496809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55077 (or 55071 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The square root of 99496809 is about 9974.8087199705. The cubic root of 99496809 is about 463.3790386165.

The spelling of 99496809 in words is "ninety-nine million, four hundred ninety-six thousand, eight hundred nine".