28295461 has 2 divisors, whose sum is σ = 28295462. Its totient is φ = 28295460.

The previous prime is 28295459. The next prime is 28295479. The reversal of 28295461 is 16459282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22982436 + 5313025 = 4794^2 + 2305^2 .

It is a cyclic number.

It is not a de Polignac number, because 28295461 - 2¹ = 28295459 is a prime.

It is a super-2 number, since 2×28295461² = 1601266226405042, which contains 22 as substring.

Together with 28295459, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28295461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28295431) 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 as a sum of consecutive naturals, namely, 14147730 + 14147731.

It is an arithmetic number, because the mean of its divisors is an integer number (14147731).

Almost surely, 2^28295461 is an apocalyptic number.

It is an amenable number.

28295461 is a deficient number, since it is larger than the sum of its proper divisors (1).

28295461 is an equidigital number, since it uses as much as digits as its factorization.

28295461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 28295461 is about 5319.3477983678. The cubic root of 28295461 is about 304.7232498100.

The spelling of 28295461 in words is "twenty-eight million, two hundred ninety-five thousand, four hundred sixty-one".