899942399 has 8 divisors (see below), whose sum is σ = 936481920. Its totient is φ = 864112536.

The previous prime is 899942389. The next prime is 899942401. The reversal of 899942399 is 993249998.

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 899942399 - 2⁴ = 899942383 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 (899942339) 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, 174827 + ... + 179900.

It is an arithmetic number, because the mean of its divisors is an integer number (117060240).

Almost surely, 2^899942399 is an apocalyptic number.

899942399 is a deficient number, since it is larger than the sum of its proper divisors (36539521).

899942399 is a wasteful number, since it uses less digits than its factorization.

899942399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354829.

The product of its digits is 11337408, while the sum is 62.

The square root of 899942399 is about 29999.0399679723. The cubic root of 899942399 is about 965.4687867017.

The spelling of 899942399 in words is "eight hundred ninety-nine million, nine hundred forty-two thousand, three hundred ninety-nine".