27223967 has 2 divisors, whose sum is σ = 27223968. Its totient is φ = 27223966.

The previous prime is 27223961. The next prime is 27223981. The reversal of 27223967 is 76932272.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27223967 - 2²² = 23029663 is a prime.

It is a super-2 number, since 2×27223967² = 1482288758434178, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27223967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27223961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13611983 + 13611984.

It is an arithmetic number, because the mean of its divisors is an integer number (13611984).

Almost surely, 2^27223967 is an apocalyptic number.

27223967 is a deficient number, since it is larger than the sum of its proper divisors (1).

27223967 is an equidigital number, since it uses as much as digits as its factorization.

27223967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 38.

The square root of 27223967 is about 5217.6591494654. The cubic root of 27223967 is about 300.8272243107.

The spelling of 27223967 in words is "twenty-seven million, two hundred twenty-three thousand, nine hundred sixty-seven".