99902401 has 8 divisors (see below), whose sum is σ = 102369024. Its totient is φ = 97450080.

The previous prime is 99902393. The next prime is 99902441. The reversal of 99902401 is 10420999.

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 99902401 - 2³ = 99902393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99902441) 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, 11316 + ... + 18106.

It is an arithmetic number, because the mean of its divisors is an integer number (12796128).

Almost surely, 2^99902401 is an apocalyptic number.

It is an amenable number.

99902401 is a deficient number, since it is larger than the sum of its proper divisors (2466623).

99902401 is a wasteful number, since it uses less digits than its factorization.

99902401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7151.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 99902401 is about 9995.1188587230. The cubic root of 99902401 is about 464.0078293987.

It can be divided in two parts, 99 and 902401, that added together give a square (902500 = 950²).

The spelling of 99902401 in words is "ninety-nine million, nine hundred two thousand, four hundred one".