28222759 has 2 divisors, whose sum is σ = 28222760. Its totient is φ = 28222758.

The previous prime is 28222757. The next prime is 28222763. The reversal of 28222759 is 95722282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28222759 - 2¹ = 28222757 is a prime.

Together with 28222757, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28222757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14111379 + 14111380.

It is an arithmetic number, because the mean of its divisors is an integer number (14111380).

Almost surely, 2^28222759 is an apocalyptic number.

28222759 is a deficient number, since it is larger than the sum of its proper divisors (1).

28222759 is an equidigital number, since it uses as much as digits as its factorization.

28222759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 28222759 is about 5312.5096705794. The cubic root of 28222759 is about 304.4620419447.

The spelling of 28222759 in words is "twenty-eight million, two hundred twenty-two thousand, seven hundred fifty-nine".