28292851 has 2 divisors, whose sum is σ = 28292852. Its totient is φ = 28292850.

The previous prime is 28292821. The next prime is 28292867. The reversal of 28292851 is 15829282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28292851 - 2⁷ = 28292723 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28292851.

It is not a weakly prime, because it can be changed into another prime (28292821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14146425 + 14146426.

It is an arithmetic number, because the mean of its divisors is an integer number (14146426).

Almost surely, 2^28292851 is an apocalyptic number.

28292851 is a deficient number, since it is larger than the sum of its proper divisors (1).

28292851 is an equidigital number, since it uses as much as digits as its factorization.

28292851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 37.

The square root of 28292851 is about 5319.1024618821. The cubic root of 28292851 is about 304.7138802020.

The spelling of 28292851 in words is "twenty-eight million, two hundred ninety-two thousand, eight hundred fifty-one".