969890564 has 6 divisors (see below), whose sum is σ = 1697308494. Its totient is φ = 484945280.

The previous prime is 969890563. The next prime is 969890569. The reversal of 969890564 is 465098969.

It can be written as a sum of positive squares in only one way, i.e., 895206400 + 74684164 = 29920^2 + 8642^2 .

It is a super-2 number, since 2×969890564² = 1881375412272476192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (969890563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121236317 + ... + 121236324.

It is an arithmetic number, because the mean of its divisors is an integer number (282884749).

Almost surely, 2^969890564 is an apocalyptic number.

It is an amenable number.

969890564 is a deficient number, since it is larger than the sum of its proper divisors (727417930).

969890564 is a wasteful number, since it uses less digits than its factorization.

969890564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242472645 (or 242472643 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 56.

The square root of 969890564 is about 31143.0660661406. The cubic root of 969890564 is about 989.8610708696.

It can be divided in two parts, 9698905 and 64, that added together give a palindrome (9698969).

The spelling of 969890564 in words is "nine hundred sixty-nine million, eight hundred ninety thousand, five hundred sixty-four".