970891005 has 32 divisors (see below), whose sum is σ = 1776973824. Its totient is φ = 443428416.

The previous prime is 970891001. The next prime is 970891007. The reversal of 970891005 is 500198079.

It is a happy number.

It is not a de Polignac number, because 970891005 - 2² = 970891001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (970891001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131112 + ... + 138318.

It is an arithmetic number, because the mean of its divisors is an integer number (55530432).

Almost surely, 2^970891005 is an apocalyptic number.

It is an amenable number.

970891005 is a deficient number, since it is larger than the sum of its proper divisors (806082819).

970891005 is a wasteful number, since it uses less digits than its factorization.

970891005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8505.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 970891005 is about 31159.1239446811. The cubic root of 970891005 is about 990.2013007657.

The spelling of 970891005 in words is "nine hundred seventy million, eight hundred ninety-one thousand, five".