28797023 has 2 divisors, whose sum is σ = 28797024. Its totient is φ = 28797022.

The previous prime is 28797011. The next prime is 28797053. The reversal of 28797023 is 32079782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28797023 - 2⁶ = 28796959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28797053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14398511 + 14398512.

It is an arithmetic number, because the mean of its divisors is an integer number (14398512).

Almost surely, 2^28797023 is an apocalyptic number.

28797023 is a deficient number, since it is larger than the sum of its proper divisors (1).

28797023 is an equidigital number, since it uses as much as digits as its factorization.

28797023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 28797023 is about 5366.2857732327. The cubic root of 28797023 is about 306.5132110047.

The spelling of 28797023 in words is "twenty-eight million, seven hundred ninety-seven thousand, twenty-three".