985974793 has 4 divisors (see below), whose sum is σ = 986399748. Its totient is φ = 985549840.

The previous prime is 985974791. The next prime is 985974811. The reversal of 985974793 is 397479589.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 397479589 = 13 ⋅30575353.

It can be written as a sum of positive squares in 2 ways, for example, as 767733264 + 218241529 = 27708^2 + 14773^2 .

It is a cyclic number.

It is not a de Polignac number, because 985974793 - 2¹ = 985974791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (985974791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208978 + ... + 213643.

It is an arithmetic number, because the mean of its divisors is an integer number (246599937).

Almost surely, 2^985974793 is an apocalyptic number.

It is an amenable number.

985974793 is a deficient number, since it is larger than the sum of its proper divisors (424955).

985974793 is a wasteful number, since it uses less digits than its factorization.

985974793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424954.

The product of its digits is 17146080, while the sum is 61.

The square root of 985974793 is about 31400.2355564413. The cubic root of 985974793 is about 995.3029028217.

The spelling of 985974793 in words is "nine hundred eighty-five million, nine hundred seventy-four thousand, seven hundred ninety-three".