28746253 has 2 divisors, whose sum is σ = 28746254. Its totient is φ = 28746252.

The previous prime is 28746209. The next prime is 28746257. The reversal of 28746253 is 35264782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16621929 + 12124324 = 4077^2 + 3482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28746253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28746257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14373126 + 14373127.

It is an arithmetic number, because the mean of its divisors is an integer number (14373127).

Almost surely, 2^28746253 is an apocalyptic number.

It is an amenable number.

28746253 is a deficient number, since it is larger than the sum of its proper divisors (1).

28746253 is an equidigital number, since it uses as much as digits as its factorization.

28746253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 28746253 is about 5361.5532264447. The cubic root of 28746253 is about 306.3329744351.

The spelling of 28746253 in words is "twenty-eight million, seven hundred forty-six thousand, two hundred fifty-three".