28299627 has 6 divisors (see below), whose sum is σ = 40877252. Its totient is φ = 18866412.

The previous prime is 28299599. The next prime is 28299643. The reversal of 28299627 is 72699282.

It is not a de Polignac number, because 28299627 - 2⁸ = 28299371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28299647) 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, 1572193 + ... + 1572210.

Almost surely, 2^28299627 is an apocalyptic number.

28299627 is a deficient number, since it is larger than the sum of its proper divisors (12577625).

28299627 is a wasteful number, since it uses less digits than its factorization.

28299627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144409 (or 3144406 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 28299627 is about 5319.7393733152. The cubic root of 28299627 is about 304.7382040903.

The spelling of 28299627 in words is "twenty-eight million, two hundred ninety-nine thousand, six hundred twenty-seven".