756984985 has 16 divisors (see below), whose sum is σ = 957116160. Its totient is φ = 573160320.

The previous prime is 756984973. The next prime is 756984989. The reversal of 756984985 is 589489657.

It is not a de Polignac number, because 756984985 - 2²⁵ = 723430553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (756984989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113709 + ... + 120181.

It is an arithmetic number, because the mean of its divisors is an integer number (59819760).

Almost surely, 2^756984985 is an apocalyptic number.

It is an amenable number.

756984985 is a deficient number, since it is larger than the sum of its proper divisors (200131175).

756984985 is a wasteful number, since it uses less digits than its factorization.

756984985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7728.

The product of its digits is 21772800, while the sum is 61.

The square root of 756984985 is about 27513.3601183134. The cubic root of 756984985 is about 911.3721540691.

The spelling of 756984985 in words is "seven hundred fifty-six million, nine hundred eighty-four thousand, nine hundred eighty-five".