28598469 has 4 divisors (see below), whose sum is σ = 38131296. Its totient is φ = 19065644.

The previous prime is 28598441. The next prime is 28598491. The reversal of 28598469 is 96489582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28598469 is a prime.

It is a super-2 number, since 2×28598469² = 1635744858287922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28599469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4766409 + ... + 4766414.

It is an arithmetic number, because the mean of its divisors is an integer number (9532824).

Almost surely, 2^28598469 is an apocalyptic number.

It is an amenable number.

28598469 is a deficient number, since it is larger than the sum of its proper divisors (9532827).

28598469 is an equidigital number, since it uses as much as digits as its factorization.

28598469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9532826.

The product of its digits is 1244160, while the sum is 51.

The square root of 28598469 is about 5347.7536405485. The cubic root of 28598469 is about 305.8071213906.

The spelling of 28598469 in words is "twenty-eight million, five hundred ninety-eight thousand, four hundred sixty-nine".