28218796 has 6 divisors (see below), whose sum is σ = 49382900. Its totient is φ = 14109396.

The previous prime is 28218791. The next prime is 28218809. The reversal of 28218796 is 69781282.

It is not an unprimeable number, because it can be changed into a prime (28218791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3527346 + ... + 3527353.

Almost surely, 2^28218796 is an apocalyptic number.

It is an amenable number.

28218796 is a deficient number, since it is larger than the sum of its proper divisors (21164104).

28218796 is a wasteful number, since it uses less digits than its factorization.

28218796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7054703 (or 7054701 counting only the distinct ones).

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

The square root of 28218796 is about 5312.1366699286. The cubic root of 28218796 is about 304.4477905675.

The spelling of 28218796 in words is "twenty-eight million, two hundred eighteen thousand, seven hundred ninety-six".