28390759 has 2 divisors, whose sum is σ = 28390760. Its totient is φ = 28390758.

The previous prime is 28390727. The next prime is 28390777. The reversal of 28390759 is 95709382.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28390759 - 2⁵ = 28390727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28390259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14195379 + 14195380.

It is an arithmetic number, because the mean of its divisors is an integer number (14195380).

Almost surely, 2^28390759 is an apocalyptic number.

28390759 is a deficient number, since it is larger than the sum of its proper divisors (1).

28390759 is an equidigital number, since it uses as much as digits as its factorization.

28390759 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 28390759 is about 5328.2979458735. The cubic root of 28390759 is about 305.0649651097.

The spelling of 28390759 in words is "twenty-eight million, three hundred ninety thousand, seven hundred fifty-nine".