969991285 has 8 divisors (see below), whose sum is σ = 1166770080. Its totient is φ = 774139344.

The previous prime is 969991283. The next prime is 969991301. The reversal of 969991285 is 582199969.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 969991285 - 2¹ = 969991283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969991283) 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, 229407 + ... + 233596.

It is an arithmetic number, because the mean of its divisors is an integer number (145846260).

Almost surely, 2^969991285 is an apocalyptic number.

It is an amenable number.

969991285 is a deficient number, since it is larger than the sum of its proper divisors (196778795).

969991285 is a wasteful number, since it uses less digits than its factorization.

969991285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463427.

The product of its digits is 3149280, while the sum is 58.

The square root of 969991285 is about 31144.6830935876. The cubic root of 969991285 is about 989.8953346479.

The spelling of 969991285 in words is "nine hundred sixty-nine million, nine hundred ninety-one thousand, two hundred eighty-five".