99799501 has 4 divisors (see below), whose sum is σ = 100000000. Its totient is φ = 99599004.

The previous prime is 99799493. The next prime is 99799519. The reversal of 99799501 is 10599799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99799501 - 2³ = 99799493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99799561) 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, 99501 + ... + 100498.

It is an arithmetic number, because the mean of its divisors is an integer number (25000000).

Almost surely, 2^99799501 is an apocalyptic number.

It is an amenable number.

99799501 is a deficient number, since it is larger than the sum of its proper divisors (200499).

99799501 is a wasteful number, since it uses less digits than its factorization.

99799501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200498.

The product of its (nonzero) digits is 229635, while the sum is 49.

The square root of 99799501 is about 9989.9700199750. The cubic root of 99799501 is about 463.8484645000.

The spelling of 99799501 in words is "ninety-nine million, seven hundred ninety-nine thousand, five hundred one".