99816801 has 32 divisors (see below), whose sum is σ = 157037568. Its totient is φ = 55218240.

The previous prime is 99816797. The next prime is 99816817. The reversal of 99816801 is 10861899.

It is not a de Polignac number, because 99816801 - 2² = 99816797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99816881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85246 + ... + 86408.

It is an arithmetic number, because the mean of its divisors is an integer number (4907424).

Almost surely, 2^99816801 is an apocalyptic number.

It is an amenable number.

99816801 is a deficient number, since it is larger than the sum of its proper divisors (57220767).

99816801 is a wasteful number, since it uses less digits than its factorization.

99816801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 99816801 is about 9990.8358509186. The cubic root of 99816801 is about 463.8752652846.

The spelling of 99816801 in words is "ninety-nine million, eight hundred sixteen thousand, eight hundred one".