28168694 has 16 divisors (see below), whose sum is σ = 44884368. Its totient is φ = 13212672.

The previous prime is 28168687. The next prime is 28168709. The reversal of 28168694 is 49686182.

It is a happy number.

It is a congruent number.

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, 10829 + ... + 13175.

It is an arithmetic number, because the mean of its divisors is an integer number (2805273).

Almost surely, 2^28168694 is an apocalyptic number.

28168694 is a deficient number, since it is larger than the sum of its proper divisors (16715674).

28168694 is a wasteful number, since it uses less digits than its factorization.

28168694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2719.

The product of its digits is 165888, while the sum is 44.

The square root of 28168694 is about 5307.4187699860. The cubic root of 28168694 is about 304.2675031741.

The spelling of 28168694 in words is "twenty-eight million, one hundred sixty-eight thousand, six hundred ninety-four".