28797367 has 2 divisors, whose sum is σ = 28797368. Its totient is φ = 28797366.

The previous prime is 28797343. The next prime is 28797409. The reversal of 28797367 is 76379782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28797367 - 2⁷ = 28797239 is a prime.

It is a super-2 number, since 2×28797367² = 1658576692265378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28797367.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28792367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14398683 + 14398684.

It is an arithmetic number, because the mean of its divisors is an integer number (14398684).

Almost surely, 2^28797367 is an apocalyptic number.

28797367 is a deficient number, since it is larger than the sum of its proper divisors (1).

28797367 is an equidigital number, since it uses as much as digits as its factorization.

28797367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 49.

The square root of 28797367 is about 5366.3178251013. The cubic root of 28797367 is about 306.5144315027.

The spelling of 28797367 in words is "twenty-eight million, seven hundred ninety-seven thousand, three hundred sixty-seven".