28394888 has 16 divisors (see below), whose sum is σ = 53991360. Its totient is φ = 13997200.

The previous prime is 28394887. The next prime is 28394893. The reversal of 28394888 is 88849382.

It is not an unprimeable number, because it can be changed into a prime (28394887) 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, 24428 + ... + 25563.

It is an arithmetic number, because the mean of its divisors is an integer number (3374460).

Almost surely, 2^28394888 is an apocalyptic number.

It is an amenable number.

28394888 is a deficient number, since it is larger than the sum of its proper divisors (25596472).

28394888 is a wasteful number, since it uses less digits than its factorization.

28394888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50068 (or 50064 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The square root of 28394888 is about 5328.6853913512. The cubic root of 28394888 is about 305.0797533980.

The spelling of 28394888 in words is "twenty-eight million, three hundred ninety-four thousand, eight hundred eighty-eight".