969912313 has 4 divisors (see below), whose sum is σ = 970104420. Its totient is φ = 969720208.

The previous prime is 969912263. The next prime is 969912319. The reversal of 969912313 is 313219969.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 875686464 + 94225849 = 29592^2 + 9707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-969912313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 969912313.

It is not an unprimeable number, because it can be changed into a prime (969912319) 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, 88270 + ... + 98647.

It is an arithmetic number, because the mean of its divisors is an integer number (242526105).

Almost surely, 2^969912313 is an apocalyptic number.

It is an amenable number.

969912313 is a deficient number, since it is larger than the sum of its proper divisors (192107).

969912313 is a wasteful number, since it uses less digits than its factorization.

969912313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192106.

The product of its digits is 78732, while the sum is 43.

The square root of 969912313 is about 31143.4152430333. The cubic root of 969912313 is about 989.8684697550.

It can be divided in two parts, 969912 and 313, that added together give a square (970225 = 985²).

The spelling of 969912313 in words is "nine hundred sixty-nine million, nine hundred twelve thousand, three hundred thirteen".