99690345 has 40 divisors (see below), whose sum is σ = 180164160. Its totient is φ = 52734240.

The previous prime is 99690323. The next prime is 99690347. The reversal of 99690345 is 54309699.

It is a happy number.

It is not a de Polignac number, because 99690345 - 2¹⁰ = 99689321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 99690345.

It is not an unprimeable number, because it can be changed into a prime (99690347) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52116 + ... + 53994.

It is an arithmetic number, because the mean of its divisors is an integer number (4504104).

Almost surely, 2^99690345 is an apocalyptic number.

It is an amenable number.

99690345 is a deficient number, since it is larger than the sum of its proper divisors (80473815).

99690345 is a wasteful number, since it uses less digits than its factorization.

99690345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027 (or 2018 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 99690345 is about 9984.5052456293. The cubic root of 99690345 is about 463.6792909294.

The spelling of 99690345 in words is "ninety-nine million, six hundred ninety thousand, three hundred forty-five".