28597411 has 4 divisors (see below), whose sum is σ = 29370352. Its totient is φ = 27824472.

The previous prime is 28597399. The next prime is 28597423. The reversal of 28597411 is 11479582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11479582 = 2 ⋅5739791.

It is an interprime number because it is at equal distance from previous prime (28597399) and next prime (28597423).

It is a cyclic number.

It is not a de Polignac number, because 28597411 - 2⁵ = 28597379 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 772903 = 28597411 / (2 + 8 + 5 + 9 + 7 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28597511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386415 + ... + 386488.

It is an arithmetic number, because the mean of its divisors is an integer number (7342588).

Almost surely, 2^28597411 is an apocalyptic number.

28597411 is a deficient number, since it is larger than the sum of its proper divisors (772941).

28597411 is an equidigital number, since it uses as much as digits as its factorization.

28597411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772940.

The product of its digits is 20160, while the sum is 37.

The square root of 28597411 is about 5347.6547195944. The cubic root of 28597411 is about 305.8033502339.

The spelling of 28597411 in words is "twenty-eight million, five hundred ninety-seven thousand, four hundred eleven".