28795919 has 2 divisors, whose sum is σ = 28795920. Its totient is φ = 28795918.

The previous prime is 28795891. The next prime is 28795951. The reversal of 28795919 is 91959782.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28795919 - 2²⁴ = 12018703 is a prime.

It is a super-2 number, since 2×28795919² = 1658409902109122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28795969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14397959 + 14397960.

It is an arithmetic number, because the mean of its divisors is an integer number (14397960).

Almost surely, 2^28795919 is an apocalyptic number.

28795919 is a deficient number, since it is larger than the sum of its proper divisors (1).

28795919 is an equidigital number, since it uses as much as digits as its factorization.

28795919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 50.

The square root of 28795919 is about 5366.1829078033. The cubic root of 28795919 is about 306.5092939921.

The spelling of 28795919 in words is "twenty-eight million, seven hundred ninety-five thousand, nine hundred nineteen".