985713994 has 4 divisors (see below), whose sum is σ = 1478570994. Its totient is φ = 492856996.

The previous prime is 985713959. The next prime is 985713997. The reversal of 985713994 is 499317589.

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., 528310225 + 457403769 = 22985^2 + 21387^2 .

It is not an unprimeable number, because it can be changed into a prime (985713997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246428497 + ... + 246428500.

Almost surely, 2^985713994 is an apocalyptic number.

985713994 is a deficient number, since it is larger than the sum of its proper divisors (492857000).

985713994 is a wasteful number, since it uses less digits than its factorization.

985713994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492856999.

The product of its digits is 2449440, while the sum is 55.

The square root of 985713994 is about 31396.0824626258. The cubic root of 985713994 is about 995.2151396275.

The spelling of 985713994 in words is "nine hundred eighty-five million, seven hundred thirteen thousand, nine hundred ninety-four".