899687794 has 4 divisors (see below), whose sum is σ = 1349531694. Its totient is φ = 449843896.

The previous prime is 899687783. The next prime is 899687809. The reversal of 899687794 is 497786998.

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

It can be written as a sum of positive squares in only one way, i.e., 884765025 + 14922769 = 29745^2 + 3863^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224921947 + ... + 224921950.

Almost surely, 2^899687794 is an apocalyptic number.

899687794 is a deficient number, since it is larger than the sum of its proper divisors (449843900).

899687794 is a wasteful number, since it uses less digits than its factorization.

899687794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449843899.

The product of its digits is 54867456, while the sum is 67.

The square root of 899687794 is about 29994.7961153264. The cubic root of 899687794 is about 965.3777303684.

The spelling of 899687794 in words is "eight hundred ninety-nine million, six hundred eighty-seven thousand, seven hundred ninety-four".