969821090 has 32 divisors (see below), whose sum is σ = 1996959744. Its totient is φ = 332193600.

The previous prime is 969821087. The next prime is 969821113. The reversal of 969821090 is 90128969.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74552 + ... + 86588.

It is an arithmetic number, because the mean of its divisors is an integer number (62404992).

Almost surely, 2^969821090 is an apocalyptic number.

969821090 is an abundant number, since it is smaller than the sum of its proper divisors (1027138654).

969821090 is a wasteful number, since it uses less digits than its factorization.

969821090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13202.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 969821090 is about 31141.9506453915. The cubic root of 969821090 is about 989.8374354710.

The spelling of 969821090 in words is "nine hundred sixty-nine million, eight hundred twenty-one thousand, ninety".