99996220 has 24 divisors (see below), whose sum is σ = 210291984. Its totient is φ = 39941376.

The previous prime is 99996191. The next prime is 99996229. The reversal of 99996220 is 2269999.

It is a happy number.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99996229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12564 + ... + 18916.

It is an arithmetic number, because the mean of its divisors is an integer number (8762166).

Almost surely, 2^99996220 is an apocalyptic number.

It is an amenable number.

99996220 is an abundant number, since it is smaller than the sum of its proper divisors (110295764).

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

99996220 is a wasteful number, since it uses less digits than its factorization.

99996220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7149 (or 7147 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 46.

The square root of 99996220 is about 9999.8109982139. The cubic root of 99996220 is about 464.1530348857.

The spelling of 99996220 in words is "ninety-nine million, nine hundred ninety-six thousand, two hundred twenty".