28916396 has 12 divisors (see below), whose sum is σ = 51359448. Its totient is φ = 14242272.

The previous prime is 28916387. The next prime is 28916399. The reversal of 28916396 is 69361982.

It is not an unprimeable number, because it can be changed into a prime (28916399) 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, 53681 + ... + 54216.

It is an arithmetic number, because the mean of its divisors is an integer number (4279954).

Almost surely, 2^28916396 is an apocalyptic number.

It is an amenable number.

28916396 is a deficient number, since it is larger than the sum of its proper divisors (22443052).

28916396 is a wasteful number, since it uses less digits than its factorization.

28916396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107968 (or 107966 counting only the distinct ones).

The product of its digits is 139968, while the sum is 44.

The square root of 28916396 is about 5377.3967679538. The cubic root of 28916396 is about 306.9361593460.

The spelling of 28916396 in words is "twenty-eight million, nine hundred sixteen thousand, three hundred ninety-six".