899979635 has 4 divisors (see below), whose sum is σ = 1079975568. Its totient is φ = 719983704.

The previous prime is 899979629. The next prime is 899979653. The reversal of 899979635 is 536979998.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 899979635 - 2⁶ = 899979571 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89997959 + ... + 89997968.

It is an arithmetic number, because the mean of its divisors is an integer number (269993892).

Almost surely, 2^899979635 is an apocalyptic number.

899979635 is a deficient number, since it is larger than the sum of its proper divisors (179995933).

899979635 is a wasteful number, since it uses less digits than its factorization.

899979635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179995932.

The product of its digits is 33067440, while the sum is 65.

The square root of 899979635 is about 29999.6605814133. The cubic root of 899979635 is about 965.4821022576.

The spelling of 899979635 in words is "eight hundred ninety-nine million, nine hundred seventy-nine thousand, six hundred thirty-five".