28714930 has 16 divisors (see below), whose sum is σ = 53469720. Its totient is φ = 11089792.

The previous prime is 28714919. The next prime is 28714949. The reversal of 28714930 is 3941782.

It can be written as a sum of positive squares in 4 ways, for example, as 12866569 + 15848361 = 3587^2 + 3981^2 .

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, 49219 + ... + 49798.

Almost surely, 2^28714930 is an apocalyptic number.

28714930 is a deficient number, since it is larger than the sum of its proper divisors (24754790).

28714930 is a wasteful number, since it uses less digits than its factorization.

28714930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99053.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 28714930 is about 5358.6313551130. The cubic root of 28714930 is about 306.2216700158.

The spelling of 28714930 in words is "twenty-eight million, seven hundred fourteen thousand, nine hundred thirty".