28986834 has 32 divisors (see below), whose sum is σ = 60978240. Its totient is φ = 9172800.

The previous prime is 28986821. The next prime is 28986847. The reversal of 28986834 is 43868982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28986821) and next prime (28986847).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9249 + ... + 11979.

It is an arithmetic number, because the mean of its divisors is an integer number (1905570).

Almost surely, 2^28986834 is an apocalyptic number.

28986834 is an abundant number, since it is smaller than the sum of its proper divisors (31991406).

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

28986834 is a wasteful number, since it uses less digits than its factorization.

28986834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826.

The product of its digits is 663552, while the sum is 48.

The square root of 28986834 is about 5383.9422359457. The cubic root of 28986834 is about 307.1851811360.

The spelling of 28986834 in words is "twenty-eight million, nine hundred eighty-six thousand, eight hundred thirty-four".