99491610 has 32 divisors (see below), whose sum is σ = 242698752. Its totient is φ = 26095680.

The previous prime is 99491591. The next prime is 99491659. The reversal of 99491610 is 1619499.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25354 + ... + 29013.

It is an arithmetic number, because the mean of its divisors is an integer number (7584336).

Almost surely, 2^99491610 is an apocalyptic number.

99491610 is an abundant number, since it is smaller than the sum of its proper divisors (143207142).

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

99491610 is a wasteful number, since it uses less digits than its factorization.

99491610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54438.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 99491610 is about 9974.5481100649. The cubic root of 99491610 is about 463.3709675048.

The spelling of 99491610 in words is "ninety-nine million, four hundred ninety-one thousand, six hundred ten".