99621086 has 8 divisors (see below), whose sum is σ = 150608640. Its totient is φ = 49418208.

The previous prime is 99621083. The next prime is 99621091. The reversal of 99621086 is 68012699.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99621083) 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, 195851 + ... + 196358.

It is an arithmetic number, because the mean of its divisors is an integer number (18826080).

Almost surely, 2^99621086 is an apocalyptic number.

99621086 is a deficient number, since it is larger than the sum of its proper divisors (50987554).

99621086 is a wasteful number, since it uses less digits than its factorization.

99621086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392338.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 99621086 is about 9981.0363189400. The cubic root of 99621086 is about 463.5718870016.

The spelling of 99621086 in words is "ninety-nine million, six hundred twenty-one thousand, eighty-six".