28627967 has 2 divisors, whose sum is σ = 28627968. Its totient is φ = 28627966.

The previous prime is 28627933. The next prime is 28627969. The reversal of 28627967 is 76972682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28627967 - 2⁶ = 28627903 is a prime.

Together with 28627969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28627969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14313983 + 14313984.

It is an arithmetic number, because the mean of its divisors is an integer number (14313984).

Almost surely, 2^28627967 is an apocalyptic number.

28627967 is a deficient number, since it is larger than the sum of its proper divisors (1).

28627967 is an equidigital number, since it uses as much as digits as its factorization.

28627967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 47.

The square root of 28627967 is about 5350.5109101842. The cubic root of 28627967 is about 305.9122272358.

The spelling of 28627967 in words is "twenty-eight million, six hundred twenty-seven thousand, nine hundred sixty-seven".