969690361 has 4 divisors (see below), whose sum is σ = 976198500. Its totient is φ = 963182224.

The previous prime is 969690349. The next prime is 969690367. The reversal of 969690361 is 163096969.

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 571927225 + 397763136 = 23915^2 + 19944^2 .

It is a cyclic number.

It is not a de Polignac number, because 969690361 - 2²³ = 961301753 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (969690367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3253846 + ... + 3254143.

It is an arithmetic number, because the mean of its divisors is an integer number (244049625).

Almost surely, 2^969690361 is an apocalyptic number.

It is an amenable number.

969690361 is a deficient number, since it is larger than the sum of its proper divisors (6508139).

969690361 is a wasteful number, since it uses less digits than its factorization.

969690361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6508138.

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 969690361 is about 31139.8516534681. The cubic root of 969690361 is about 989.7929577578.

The spelling of 969690361 in words is "nine hundred sixty-nine million, six hundred ninety thousand, three hundred sixty-one".