28774027 has 2 divisors, whose sum is σ = 28774028. Its totient is φ = 28774026.

The previous prime is 28774001. The next prime is 28774043. The reversal of 28774027 is 72047782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28774027 - 2²³ = 20385419 is a prime.

It is a Chen prime.

It is equal to p_1786537 and since 28774027 and 1786537 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (28775027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14387013 + 14387014.

It is an arithmetic number, because the mean of its divisors is an integer number (14387014).

Almost surely, 2^28774027 is an apocalyptic number.

28774027 is a deficient number, since it is larger than the sum of its proper divisors (1).

28774027 is an equidigital number, since it uses as much as digits as its factorization.

28774027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43904, while the sum is 37.

The square root of 28774027 is about 5364.1427087653. The cubic root of 28774027 is about 306.4316000819.

The spelling of 28774027 in words is "twenty-eight million, seven hundred seventy-four thousand, twenty-seven".