99309798 has 24 divisors (see below), whose sum is σ = 245910288. Its totient is φ = 28374192.

The previous prime is 99309787. The next prime is 99309839. The reversal of 99309798 is 89790399.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393961 + ... + 394212.

It is an arithmetic number, because the mean of its divisors is an integer number (10246262).

Almost surely, 2^99309798 is an apocalyptic number.

99309798 is an abundant number, since it is smaller than the sum of its proper divisors (146600490).

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

99309798 is a wasteful number, since it uses less digits than its factorization.

99309798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788188 (or 788185 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The square root of 99309798 is about 9965.4301462606. The cubic root of 99309798 is about 463.0885390933.

The spelling of 99309798 in words is "ninety-nine million, three hundred nine thousand, seven hundred ninety-eight".