99876220 has 12 divisors (see below), whose sum is σ = 209740104. Its totient is φ = 39950480.

The previous prime is 99876211. The next prime is 99876223. The reversal of 99876220 is 2267899.

It is a happy number.

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 (99876223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2496886 + ... + 2496925.

It is an arithmetic number, because the mean of its divisors is an integer number (17478342).

Almost surely, 2^99876220 is an apocalyptic number.

It is an amenable number.

99876220 is an abundant number, since it is smaller than the sum of its proper divisors (109863884).

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

99876220 is a wasteful number, since it uses less digits than its factorization.

99876220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993820 (or 4993818 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 99876220 is about 9993.8090836277. The cubic root of 99876220 is about 463.9672923338.

The spelling of 99876220 in words is "ninety-nine million, eight hundred seventy-six thousand, two hundred twenty".