970871561 has 8 divisors (see below), whose sum is σ = 1105182144. Its totient is φ = 844235920.

The previous prime is 970871533. The next prime is 970871569. The reversal of 970871561 is 165178079.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 970871561 - 2⁶ = 970871497 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (970871569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1918466 + ... + 1918971.

It is an arithmetic number, because the mean of its divisors is an integer number (138147768).

Almost surely, 2^970871561 is an apocalyptic number.

It is an amenable number.

970871561 is a deficient number, since it is larger than the sum of its proper divisors (134310583).

970871561 is a wasteful number, since it uses less digits than its factorization.

970871561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837471.

The product of its (nonzero) digits is 105840, while the sum is 44.

The square root of 970871561 is about 31158.8119317794. The cubic root of 970871561 is about 990.1946904794.

The spelling of 970871561 in words is "nine hundred seventy million, eight hundred seventy-one thousand, five hundred sixty-one".