28514667 has 6 divisors (see below), whose sum is σ = 38031892. Its totient is φ = 19003612.

The previous prime is 28514653. The next prime is 28514669. The reversal of 28514667 is 76641582.

It is not a de Polignac number, because 28514667 - 2⁷ = 28514539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28514669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7708 + ... + 10790.

Almost surely, 2^28514667 is an apocalyptic number.

28514667 is a deficient number, since it is larger than the sum of its proper divisors (9517225).

28514667 is an frugal number, since it uses more digits than its factorization.

28514667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6169 (or 3086 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 28514667 is about 5339.9126397348. The cubic root of 28514667 is about 305.5081272844.

The spelling of 28514667 in words is "twenty-eight million, five hundred fourteen thousand, six hundred sixty-seven".