28753279 has 2 divisors, whose sum is σ = 28753280. Its totient is φ = 28753278.

The previous prime is 28753253. The next prime is 28753339. The reversal of 28753279 is 97235782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28753279 - 2²¹ = 26656127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28753079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14376639 + 14376640.

It is an arithmetic number, because the mean of its divisors is an integer number (14376640).

Almost surely, 2^28753279 is an apocalyptic number.

28753279 is a deficient number, since it is larger than the sum of its proper divisors (1).

28753279 is an equidigital number, since it uses as much as digits as its factorization.

28753279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 211680, while the sum is 43.

The square root of 28753279 is about 5362.2084069905. The cubic root of 28753279 is about 306.3579298052.

The spelling of 28753279 in words is "twenty-eight million, seven hundred fifty-three thousand, two hundred seventy-nine".