28799597 has 2 divisors, whose sum is σ = 28799598. Its totient is φ = 28799596.

The previous prime is 28799567. The next prime is 28799633. The reversal of 28799597 is 79599782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28238596 + 561001 = 5314^2 + 749^2 .

It is a cyclic number.

It is not a de Polignac number, because 28799597 - 2²² = 24605293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28799557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14399798 + 14399799.

It is an arithmetic number, because the mean of its divisors is an integer number (14399799).

Almost surely, 2^28799597 is an apocalyptic number.

It is an amenable number.

28799597 is a deficient number, since it is larger than the sum of its proper divisors (1).

28799597 is an equidigital number, since it uses as much as digits as its factorization.

28799597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857680, while the sum is 56.

The square root of 28799597 is about 5366.5255985600. The cubic root of 28799597 is about 306.5223432160.

The spelling of 28799597 in words is "twenty-eight million, seven hundred ninety-nine thousand, five hundred ninety-seven".