28214668 has 6 divisors (see below), whose sum is σ = 49375676. Its totient is φ = 14107332.

The previous prime is 28214663. The next prime is 28214671. The reversal of 28214668 is 86641282.

It is not an unprimeable number, because it can be changed into a prime (28214663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3526830 + ... + 3526837.

Almost surely, 2^28214668 is an apocalyptic number.

It is an amenable number.

28214668 is a deficient number, since it is larger than the sum of its proper divisors (21161008).

28214668 is a wasteful number, since it uses less digits than its factorization.

28214668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7053671 (or 7053669 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 28214668 is about 5311.7481114978. The cubic root of 28214668 is about 304.4329444136.

It can be divided in two parts, 28214 and 668, that added together give a palindrome (28882).

The spelling of 28214668 in words is "twenty-eight million, two hundred fourteen thousand, six hundred sixty-eight".