99620170 has 32 divisors (see below), whose sum is σ = 204473808. Its totient is φ = 34618368.

The previous prime is 99620161. The next prime is 99620179. The reversal of 99620170 is 7102699.

It is an interprime number because it is at equal distance from previous prime (99620161) and next prime (99620179).

It can be written as a sum of positive squares in 8 ways, for example, as 41692849 + 57927321 = 6457^2 + 7611^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (99620179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20329 + ... + 24748.

Almost surely, 2^99620170 is an apocalyptic number.

99620170 is an abundant number, since it is smaller than the sum of its proper divisors (104853638).

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

99620170 is a wasteful number, since it uses less digits than its factorization.

99620170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45114.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 99620170 is about 9980.9904318159. The cubic root of 99620170 is about 463.5704661740.

The spelling of 99620170 in words is "ninety-nine million, six hundred twenty thousand, one hundred seventy".