969684642 has 64 divisors (see below), whose sum is σ = 2186645760. Its totient is φ = 318494592.

The previous prime is 969684593. The next prime is 969684643. The reversal of 969684642 is 246486969.

969684642 is a `hidden beast` number, since 96 + 96 + 8 + 464 + 2 = 666.

969684642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 31 ways as a sum of consecutive naturals, for example, 1740628 + ... + 1741184.

It is an arithmetic number, because the mean of its divisors is an integer number (34166340).

Almost surely, 2^969684642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 969684642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1093322880).

969684642 is an abundant number, since it is smaller than the sum of its proper divisors (1216961118).

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

969684642 is a wasteful number, since it uses less digits than its factorization.

969684642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984 (or 978 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 969684642 is about 31139.7598256634. The cubic root of 969684642 is about 989.7910119006.

The spelling of 969684642 in words is "nine hundred sixty-nine million, six hundred eighty-four thousand, six hundred forty-two".