28218862 has 8 divisors (see below), whose sum is σ = 48375216. Its totient is φ = 12093792.

The previous prime is 28218833. The next prime is 28218877. The reversal of 28218862 is 26881282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007803 + ... + 1007830.

It is an arithmetic number, because the mean of its divisors is an integer number (6046902).

Almost surely, 2^28218862 is an apocalyptic number.

28218862 is a deficient number, since it is larger than the sum of its proper divisors (20156354).

28218862 is a wasteful number, since it uses less digits than its factorization.

28218862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015642.

The product of its digits is 24576, while the sum is 37.

The square root of 28218862 is about 5312.1428821145. The cubic root of 28218862 is about 304.4480279216.

The spelling of 28218862 in words is "twenty-eight million, two hundred eighteen thousand, eight hundred sixty-two".