28889676 has 24 divisors (see below), whose sum is σ = 74899440. Its totient is φ = 9629856.

The previous prime is 28889639. The next prime is 28889683. The reversal of 28889676 is 67698882.

It is a super-2 number, since 2×28889676² = 1669226758769952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133641 + ... + 133856.

It is an arithmetic number, because the mean of its divisors is an integer number (3120810).

Almost surely, 2^28889676 is an apocalyptic number.

It is an amenable number.

28889676 is an abundant number, since it is smaller than the sum of its proper divisors (46009764).

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

28889676 is a wasteful number, since it uses less digits than its factorization.

28889676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267510 (or 267502 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 54.

The square root of 28889676 is about 5374.9117202053. The cubic root of 28889676 is about 306.8415894510.

The spelling of 28889676 in words is "twenty-eight million, eight hundred eighty-nine thousand, six hundred seventy-six".