99190439 has 8 divisors (see below), whose sum is σ = 101930640. Its totient is φ = 96465600.

The previous prime is 99190433. The next prime is 99190459. The reversal of 99190439 is 93409199.

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 99190439 - 2⁴ = 99190423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99190439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99190433) 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, 9917 + ... + 17225.

It is an arithmetic number, because the mean of its divisors is an integer number (12741330).

Almost surely, 2^99190439 is an apocalyptic number.

99190439 is a deficient number, since it is larger than the sum of its proper divisors (2740201).

99190439 is a wasteful number, since it uses less digits than its factorization.

99190439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7681.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 99190439 is about 9959.4396930751. The cubic root of 99190439 is about 462.9029382594.

The spelling of 99190439 in words is "ninety-nine million, one hundred ninety thousand, four hundred thirty-nine".