899392645 has 8 divisors (see below), whose sum is σ = 1136075040. Its totient is φ = 681644880.

The previous prime is 899392609. The next prime is 899392679. The reversal of 899392645 is 546293998.

It is a happy number.

899392645 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-899392645 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4733551 + ... + 4733740.

It is an arithmetic number, because the mean of its divisors is an integer number (142009380).

Almost surely, 2^899392645 is an apocalyptic number.

It is an amenable number.

899392645 is a deficient number, since it is larger than the sum of its proper divisors (236682395).

899392645 is a wasteful number, since it uses less digits than its factorization.

899392645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9467315.

The product of its digits is 4199040, while the sum is 55.

The square root of 899392645 is about 29989.8757083120. The cubic root of 899392645 is about 965.2721524716.

The spelling of 899392645 in words is "eight hundred ninety-nine million, three hundred ninety-two thousand, six hundred forty-five".