970443865 has 4 divisors (see below), whose sum is σ = 1164532644. Its totient is φ = 776355088.

The previous prime is 970443863. The next prime is 970443869. The reversal of 970443865 is 568344079.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 568344079 = 23801 ⋅23879.

It can be written as a sum of positive squares in 2 ways, for example, as 218093824 + 752350041 = 14768^2 + 27429^2 .

It is a cyclic number.

It is not a de Polignac number, because 970443865 - 2¹ = 970443863 is a prime.

It is a super-2 number, since 2×970443865² = 1883522590232276450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (970443863) 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, 97044382 + ... + 97044391.

It is an arithmetic number, because the mean of its divisors is an integer number (291133161).

Almost surely, 2^970443865 is an apocalyptic number.

It is an amenable number.

970443865 is a deficient number, since it is larger than the sum of its proper divisors (194088779).

970443865 is a wasteful number, since it uses less digits than its factorization.

970443865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194088778.

The product of its (nonzero) digits is 725760, while the sum is 46.

The square root of 970443865 is about 31151.9480129253. The cubic root of 970443865 is about 990.0492663304.

The spelling of 970443865 in words is "nine hundred seventy million, four hundred forty-three thousand, eight hundred sixty-five".