28468469 has 2 divisors, whose sum is σ = 28468470. Its totient is φ = 28468468.

The previous prime is 28468423. The next prime is 28468471. The reversal of 28468469 is 96486482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16703569 + 11764900 = 4087^2 + 3430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28468469 is a prime.

It is a super-2 number, since 2×28468469² = 1620907454407922, which contains 22 as substring.

Together with 28468471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28468409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14234234 + 14234235.

It is an arithmetic number, because the mean of its divisors is an integer number (14234235).

Almost surely, 2^28468469 is an apocalyptic number.

It is an amenable number.

28468469 is a deficient number, since it is larger than the sum of its proper divisors (1).

28468469 is an equidigital number, since it uses as much as digits as its factorization.

28468469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 47.

The square root of 28468469 is about 5335.5851600363. The cubic root of 28468469 is about 305.3430485723.

The spelling of 28468469 in words is "twenty-eight million, four hundred sixty-eight thousand, four hundred sixty-nine".