986724994 has 4 divisors (see below), whose sum is σ = 1480087494. Its totient is φ = 493362496.

The previous prime is 986724953. The next prime is 986725039. The reversal of 986724994 is 499427689.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499427689 = 181 ⋅2759269.

It can be written as a sum of positive squares in only one way, i.e., 874089225 + 112635769 = 29565^2 + 10613^2 .

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, 246681247 + ... + 246681250.

Almost surely, 2^986724994 is an apocalyptic number.

986724994 is a deficient number, since it is larger than the sum of its proper divisors (493362500).

986724994 is a wasteful number, since it uses less digits than its factorization.

986724994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493362499.

The product of its digits is 7838208, while the sum is 58.

The square root of 986724994 is about 31412.1790711819. The cubic root of 986724994 is about 995.5552716594. Note that the first 3 decimals are identical.

The spelling of 986724994 in words is "nine hundred eighty-six million, seven hundred twenty-four thousand, nine hundred ninety-four".