99962091 has 24 divisors (see below), whose sum is σ = 156147264. Its totient is φ = 61382400.

The previous prime is 99962069. The next prime is 99962099. The reversal of 99962091 is 19026999.

It is a happy number.

It is not a de Polignac number, because 99962091 - 2¹⁰ = 99961067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99962099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241 + ... + 14141.

It is an arithmetic number, because the mean of its divisors is an integer number (6506136).

Almost surely, 2^99962091 is an apocalyptic number.

99962091 is a deficient number, since it is larger than the sum of its proper divisors (56185173).

99962091 is a wasteful number, since it uses less digits than its factorization.

99962091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13971 (or 13968 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 99962091 is about 9998.1043703294. The cubic root of 99962091 is about 464.1002232845.

The spelling of 99962091 in words is "ninety-nine million, nine hundred sixty-two thousand, ninety-one".