970772209 has 4 divisors (see below), whose sum is σ = 1059024240. Its totient is φ = 882520180.

The previous prime is 970772191. The next prime is 970772213. The reversal of 970772209 is 902277079.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 970772209 - 2⁷ = 970772081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (970772249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44125999 + ... + 44126020.

It is an arithmetic number, because the mean of its divisors is an integer number (264756060).

Almost surely, 2^970772209 is an apocalyptic number.

It is an amenable number.

970772209 is a deficient number, since it is larger than the sum of its proper divisors (88252031).

970772209 is a wasteful number, since it uses less digits than its factorization.

970772209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88252030.

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 970772209 is about 31157.2176068403. The cubic root of 970772209 is about 990.1609128639.

The spelling of 970772209 in words is "nine hundred seventy million, seven hundred seventy-two thousand, two hundred nine".