128892716 has 12 divisors (see below), whose sum is σ = 225689688. Its totient is φ = 64409952.

The previous prime is 128892697. The next prime is 128892763. The reversal of 128892716 is 617298821.

It is a super-2 number, since 2×128892716² = 33226664475713312, which contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161 + ... + 16056.

It is an arithmetic number, because the mean of its divisors is an integer number (18807474).

Almost surely, 2^128892716 is an apocalyptic number.

It is an amenable number.

128892716 is a deficient number, since it is larger than the sum of its proper divisors (96796972).

128892716 is a wasteful number, since it uses less digits than its factorization.

128892716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18208 (or 18206 counting only the distinct ones).

The product of its digits is 96768, while the sum is 44.

The square root of 128892716 is about 11353.0927944768. The cubic root of 128892716 is about 505.1373230443.

The spelling of 128892716 in words is "one hundred twenty-eight million, eight hundred ninety-two thousand, seven hundred sixteen".