969328891 has 4 divisors (see below), whose sum is σ = 969439000. Its totient is φ = 969218784.

The previous prime is 969328883. The next prime is 969328903. The reversal of 969328891 is 198823969.

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

It is a cyclic number.

It is not a de Polignac number, because 969328891 - 2³ = 969328883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (969328391) 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, 40581 + ... + 59878.

It is an arithmetic number, because the mean of its divisors is an integer number (242359750).

Almost surely, 2^969328891 is an apocalyptic number.

969328891 is a deficient number, since it is larger than the sum of its proper divisors (110109).

969328891 is a wasteful number, since it uses less digits than its factorization.

969328891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110108.

The product of its digits is 1679616, while the sum is 55.

The square root of 969328891 is about 31134.0471349293. The cubic root of 969328891 is about 989.6699546012.

The spelling of 969328891 in words is "nine hundred sixty-nine million, three hundred twenty-eight thousand, eight hundred ninety-one".