28951267 has 2 divisors, whose sum is σ = 28951268. Its totient is φ = 28951266.

The previous prime is 28951259. The next prime is 28951277. The reversal of 28951267 is 76215982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28951267 - 2³ = 28951259 is a prime.

It is equal to p_1796845 and since 28951267 and 1796845 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (28951217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14475633 + 14475634.

It is an arithmetic number, because the mean of its divisors is an integer number (14475634).

Almost surely, 2^28951267 is an apocalyptic number.

28951267 is a deficient number, since it is larger than the sum of its proper divisors (1).

28951267 is an equidigital number, since it uses as much as digits as its factorization.

28951267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 40.

The square root of 28951267 is about 5380.6381591778. The cubic root of 28951267 is about 307.0594904288.

The spelling of 28951267 in words is "twenty-eight million, nine hundred fifty-one thousand, two hundred sixty-seven".