27028819 has 2 divisors, whose sum is σ = 27028820. Its totient is φ = 27028818.

The previous prime is 27028801. The next prime is 27028831. The reversal of 27028819 is 91882072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27028819 - 2⁵ = 27028787 is a prime.

It is a super-2 number, since 2×27028819² = 1461114113069522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27028879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13514409 + 13514410.

It is an arithmetic number, because the mean of its divisors is an integer number (13514410).

Almost surely, 2^27028819 is an apocalyptic number.

27028819 is a deficient number, since it is larger than the sum of its proper divisors (1).

27028819 is an equidigital number, since it uses as much as digits as its factorization.

27028819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 27028819 is about 5198.9247926855. The cubic root of 27028819 is about 300.1066990836.

The spelling of 27028819 in words is "twenty-seven million, twenty-eight thousand, eight hundred nineteen".