28819672 has 16 divisors (see below), whose sum is σ = 61756560. Its totient is φ = 12351264.

The previous prime is 28819669. The next prime is 28819697. The reversal of 28819672 is 27691882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257263 + ... + 257374.

It is an arithmetic number, because the mean of its divisors is an integer number (3859785).

Almost surely, 2^28819672 is an apocalyptic number.

It is an amenable number.

28819672 is an abundant number, since it is smaller than the sum of its proper divisors (32936888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28819672 is a wasteful number, since it uses less digits than its factorization.

28819672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514650 (or 514646 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 28819672 is about 5368.3956635107. The cubic root of 28819672 is about 306.5935479951.

The spelling of 28819672 in words is "twenty-eight million, eight hundred nineteen thousand, six hundred seventy-two".