969630385 has 4 divisors (see below), whose sum is σ = 1163556468. Its totient is φ = 775704304.

The previous prime is 969630379. The next prime is 969630391. The reversal of 969630385 is 583036969.

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

It is an interprime number because it is at equal distance from previous prime (969630379) and next prime (969630391).

It can be written as a sum of positive squares in 2 ways, for example, as 431019121 + 538611264 = 20761^2 + 23208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-969630385 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96963034 + ... + 96963043.

It is an arithmetic number, because the mean of its divisors is an integer number (290889117).

Almost surely, 2^969630385 is an apocalyptic number.

It is an amenable number.

969630385 is a deficient number, since it is larger than the sum of its proper divisors (193926083).

969630385 is a wasteful number, since it uses less digits than its factorization.

969630385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193926082.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 969630385 is about 31138.8886282089. Note that the first 3 decimals coincide. The cubic root of 969630385 is about 989.7725508841.

The spelling of 969630385 in words is "nine hundred sixty-nine million, six hundred thirty thousand, three hundred eighty-five".