28494461 has 2 divisors, whose sum is σ = 28494462. Its totient is φ = 28494460.

The previous prime is 28494457. The next prime is 28494469. The reversal of 28494461 is 16449482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14394436 + 14100025 = 3794^2 + 3755^2 .

It is a cyclic number.

It is not a de Polignac number, because 28494461 - 2² = 28494457 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28494469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14247230 + 14247231.

It is an arithmetic number, because the mean of its divisors is an integer number (14247231).

Almost surely, 2^28494461 is an apocalyptic number.

It is an amenable number.

28494461 is a deficient number, since it is larger than the sum of its proper divisors (1).

28494461 is an equidigital number, since it uses as much as digits as its factorization.

28494461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 38.

The square root of 28494461 is about 5338.0203259261. The cubic root of 28494461 is about 305.4359474022.

The spelling of 28494461 in words is "twenty-eight million, four hundred ninety-four thousand, four hundred sixty-one".