99621610 has 16 divisors (see below), whose sum is σ = 195620832. Its totient is φ = 36226000.

The previous prime is 99621593. The next prime is 99621629. The reversal of 99621610 is 1612699.

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, 452716 + ... + 452935.

It is an arithmetic number, because the mean of its divisors is an integer number (12226302).

Almost surely, 2^99621610 is an apocalyptic number.

99621610 is a deficient number, since it is larger than the sum of its proper divisors (95999222).

99621610 is a wasteful number, since it uses less digits than its factorization.

99621610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905669.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 99621610 is about 9981.0625686848. The cubic root of 99621610 is about 463.5726997855.

The spelling of 99621610 in words is "ninety-nine million, six hundred twenty-one thousand, six hundred ten".