28627245 has 24 divisors (see below), whose sum is σ = 49754016. Its totient is φ = 15226848.

The previous prime is 28627237. The next prime is 28627253. The reversal of 28627245 is 54272682.

28627245 is a `hidden beast` number, since 2 + 8 + 627 + 24 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (28627237) and next prime (28627253).

It is not a de Polignac number, because 28627245 - 2³ = 28627237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24034 + ... + 25196.

It is an arithmetic number, because the mean of its divisors is an integer number (2073084).

Almost surely, 2^28627245 is an apocalyptic number.

It is an amenable number.

28627245 is a deficient number, since it is larger than the sum of its proper divisors (21126771).

28627245 is a wasteful number, since it uses less digits than its factorization.

28627245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721 (or 1718 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 28627245 is about 5350.4434395665. The cubic root of 28627245 is about 305.9096555025.

The spelling of 28627245 in words is "twenty-eight million, six hundred twenty-seven thousand, two hundred forty-five".