99239401 has 4 divisors (see below), whose sum is σ = 102440704. Its totient is φ = 96038100.

The previous prime is 99239381. The next prime is 99239407. The reversal of 99239401 is 10493299.

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 99239401 - 2¹⁷ = 99108329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99239407) 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, 1600605 + ... + 1600666.

It is an arithmetic number, because the mean of its divisors is an integer number (25610176).

Almost surely, 2^99239401 is an apocalyptic number.

It is an amenable number.

99239401 is a deficient number, since it is larger than the sum of its proper divisors (3201303).

99239401 is a wasteful number, since it uses less digits than its factorization.

99239401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201302.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 99239401 is about 9961.8974598216. The cubic root of 99239401 is about 462.9790911820.

The spelling of 99239401 in words is "ninety-nine million, two hundred thirty-nine thousand, four hundred one".