28680627 has 4 divisors (see below), whose sum is σ = 38240840. Its totient is φ = 19120416.

The previous prime is 28680599. The next prime is 28680629. The reversal of 28680627 is 72608682.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28680627 - 2⁸ = 28680371 is a prime.

It is a super-2 number, since 2×28680627² = 1645156730226258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28680629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4780102 + ... + 4780107.

It is an arithmetic number, because the mean of its divisors is an integer number (9560210).

Almost surely, 2^28680627 is an apocalyptic number.

28680627 is a deficient number, since it is larger than the sum of its proper divisors (9560213).

28680627 is an equidigital number, since it uses as much as digits as its factorization.

28680627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9560212.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 28680627 is about 5355.4296746386. The cubic root of 28680627 is about 306.0996834445.

The spelling of 28680627 in words is "twenty-eight million, six hundred eighty thousand, six hundred twenty-seven".