28493249 has 2 divisors, whose sum is σ = 28493250. Its totient is φ = 28493248.

The previous prime is 28493243. The next prime is 28493281. The reversal of 28493249 is 94239482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19642624 + 8850625 = 4432^2 + 2975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28493249 is a prime.

It is not a weakly prime, because it can be changed into another prime (28493243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14246624 + 14246625.

It is an arithmetic number, because the mean of its divisors is an integer number (14246625).

Almost surely, 2^28493249 is an apocalyptic number.

It is an amenable number.

28493249 is a deficient number, since it is larger than the sum of its proper divisors (1).

28493249 is an equidigital number, since it uses as much as digits as its factorization.

28493249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 28493249 is about 5337.9067994861. The cubic root of 28493249 is about 305.4316168107.

The spelling of 28493249 in words is "twenty-eight million, four hundred ninety-three thousand, two hundred forty-nine".