99173801 has 8 divisors (see below), whose sum is σ = 107846280. Its totient is φ = 90816768.

The previous prime is 99173797. The next prime is 99173821. The reversal of 99173801 is 10837199.

It can be written as a sum of positive squares in 4 ways, for example, as 31933801 + 67240000 = 5651^2 + 8200^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 99173801 - 2² = 99173797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99173821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78206 + ... + 79463.

It is an arithmetic number, because the mean of its divisors is an integer number (13480785).

Almost surely, 2^99173801 is an apocalyptic number.

It is an amenable number.

99173801 is a deficient number, since it is larger than the sum of its proper divisors (8672479).

99173801 is a wasteful number, since it uses less digits than its factorization.

99173801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157723.

The product of its (nonzero) digits is 13608, while the sum is 38.

The square root of 99173801 is about 9958.6043700912. The cubic root of 99173801 is about 462.8770546835.

The spelling of 99173801 in words is "ninety-nine million, one hundred seventy-three thousand, eight hundred one".