99521842 has 96 divisors (see below), whose sum is σ = 198567936. Its totient is φ = 37094400.

The previous prime is 99521831. The next prime is 99521843. The reversal of 99521842 is 24812599.

It is a junction number, because it is equal to n+sod(n) for n = 99521795 and 99521804.

It is not an unprimeable number, because it can be changed into a prime (99521843) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2117463 + ... + 2117509.

It is an arithmetic number, because the mean of its divisors is an integer number (2068416).

Almost surely, 2^99521842 is an apocalyptic number.

99521842 is a deficient number, since it is larger than the sum of its proper divisors (99046094).

99521842 is a wasteful number, since it uses less digits than its factorization.

99521842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 145 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 99521842 is about 9976.0634520837. The cubic root of 99521842 is about 463.4178967967.

The spelling of 99521842 in words is "ninety-nine million, five hundred twenty-one thousand, eight hundred forty-two".