8969615428 has 12 divisors (see below), whose sum is σ = 16079676732. Its totient is φ = 4375422080.

The previous prime is 8969615393. The next prime is 8969615441. The reversal of 8969615428 is 8245169698.

It can be written as a sum of positive squares in 2 ways, for example, as 1948516164 + 7021099264 = 44142^2 + 83792^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27346225 + ... + 27346552.

It is an arithmetic number, because the mean of its divisors is an integer number (1339973061).

Almost surely, 2^8969615428 is an apocalyptic number.

It is an amenable number.

8969615428 is a deficient number, since it is larger than the sum of its proper divisors (7110061304).

8969615428 is a wasteful number, since it uses less digits than its factorization.

8969615428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54692822 (or 54692820 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 58.

The square root of 8969615428 is about 94708.0536596545. The cubic root of 8969615428 is about 2077.7403521052.

The spelling of 8969615428 in words is "eight billion, nine hundred sixty-nine million, six hundred fifteen thousand, four hundred twenty-eight".