28976699 has 4 divisors (see below), whose sum is σ = 29138760. Its totient is φ = 28814640.

The previous prime is 28976677. The next prime is 28976707. The reversal of 28976699 is 99667982.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28976699 - 2⁸ = 28976443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28976609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80762 + ... + 81119.

It is an arithmetic number, because the mean of its divisors is an integer number (7284690).

Almost surely, 2^28976699 is an apocalyptic number.

28976699 is a deficient number, since it is larger than the sum of its proper divisors (162061).

28976699 is a wasteful number, since it uses less digits than its factorization.

28976699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162060.

The product of its digits is 2939328, while the sum is 56.

The square root of 28976699 is about 5383.0009288500. Note that the first 3 decimals coincide. The cubic root of 28976699 is about 307.1493754006.

The spelling of 28976699 in words is "twenty-eight million, nine hundred seventy-six thousand, six hundred ninety-nine".