28920076 has 12 divisors (see below), whose sum is σ = 52355520. Its totient is φ = 13961360.

The previous prime is 28920049. The next prime is 28920079. The reversal of 28920076 is 67002982.

It is not an unprimeable number, because it can be changed into a prime (28920079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124540 + ... + 124771.

It is an arithmetic number, because the mean of its divisors is an integer number (4362960).

Almost surely, 2^28920076 is an apocalyptic number.

It is an amenable number.

28920076 is a deficient number, since it is larger than the sum of its proper divisors (23435444).

28920076 is a wasteful number, since it uses less digits than its factorization.

28920076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249344 (or 249342 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 28920076 is about 5377.7389300709. The cubic root of 28920076 is about 306.9491793774.

The spelling of 28920076 in words is "twenty-eight million, nine hundred twenty thousand, seventy-six".