99537822 has 80 divisors (see below), whose sum is σ = 241496640. Its totient is φ = 30523392.

The previous prime is 99537817. The next prime is 99537847. The reversal of 99537822 is 22873599.

99537822 is a `hidden beast` number, since 99 + 537 + 8 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 129054 + ... + 129822.

It is an arithmetic number, because the mean of its divisors is an integer number (3018708).

Almost surely, 2^99537822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99537822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120748320).

99537822 is an abundant number, since it is smaller than the sum of its proper divisors (141958818).

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

99537822 is a wasteful number, since it uses less digits than its factorization.

99537822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 838 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 99537822 is about 9976.8643370550. The cubic root of 99537822 is about 463.4426987950.

The spelling of 99537822 in words is "ninety-nine million, five hundred thirty-seven thousand, eight hundred twenty-two".