99863622 has 24 divisors (see below), whose sum is σ = 216903960. Its totient is φ = 33205920.

The previous prime is 99863609. The next prime is 99863623. The reversal of 99863622 is 22636899.

99863622 is a `hidden beast` number, since 9 + 9 + 8 + 636 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99863623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 922 + ... + 14162.

It is an arithmetic number, because the mean of its divisors is an integer number (9037665).

Almost surely, 2^99863622 is an apocalyptic number.

99863622 is an abundant number, since it is smaller than the sum of its proper divisors (117040338).

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

99863622 is a wasteful number, since it uses less digits than its factorization.

99863622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13668 (or 13665 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 99863622 is about 9993.1787735435. The cubic root of 99863622 is about 463.9477838338.

It can be divided in two parts, 998 and 63622, that added together give a triangular number (64620 = T₃₅₉).

The spelling of 99863622 in words is "ninety-nine million, eight hundred sixty-three thousand, six hundred twenty-two".