969684640 has 48 divisors (see below), whose sum is σ = 2311196328. Its totient is φ = 384434176.

The previous prime is 969684593. The next prime is 969684643. The reversal of 969684640 is 46486969.

It can be written as a sum of positive squares in 4 ways, for example, as 298460176 + 671224464 = 17276^2 + 25908^2 .

It is not an unprimeable number, because it can be changed into a prime (969684643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8737 + ... + 44896.

Almost surely, 2^969684640 is an apocalyptic number.

It is an amenable number.

969684640 is an abundant number, since it is smaller than the sum of its proper divisors (1341511688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

969684640 is a wasteful number, since it uses less digits than its factorization.

969684640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53761 (or 53753 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 52.

The square root of 969684640 is about 31139.7597935501. The cubic root of 969684640 is about 989.7910112201.

The spelling of 969684640 in words is "nine hundred sixty-nine million, six hundred eighty-four thousand, six hundred forty".