99969590 has 16 divisors (see below), whose sum is σ = 205651872. Its totient is φ = 34275264.

The previous prime is 99969589. The next prime is 99969601. The reversal of 99969590 is 9596999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713999 + ... + 714138.

It is an arithmetic number, because the mean of its divisors is an integer number (12853242).

Almost surely, 2^99969590 is an apocalyptic number.

99969590 is an abundant number, since it is smaller than the sum of its proper divisors (105682282).

99969590 is a wasteful number, since it uses less digits than its factorization.

99969590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428151.

The product of its (nonzero) digits is 1771470, while the sum is 56.

The square root of 99969590 is about 9998.4793843864. The cubic root of 99969590 is about 464.1118283523. Note that the first 3 decimals are identical.

The spelling of 99969590 in words is "ninety-nine million, nine hundred sixty-nine thousand, five hundred ninety".