28400759 has 2 divisors, whose sum is σ = 28400760. Its totient is φ = 28400758.

The previous prime is 28400753. The next prime is 28400767. The reversal of 28400759 is 95700482.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28400759 - 2⁸ = 28400503 is a prime.

It is a super-2 number, since 2×28400759² = 1613206223552162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28400753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14200379 + 14200380.

It is an arithmetic number, because the mean of its divisors is an integer number (14200380).

Almost surely, 2^28400759 is an apocalyptic number.

28400759 is a deficient number, since it is larger than the sum of its proper divisors (1).

28400759 is an equidigital number, since it uses as much as digits as its factorization.

28400759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 28400759 is about 5329.2362492200. The cubic root of 28400759 is about 305.1007783069.

The spelling of 28400759 in words is "twenty-eight million, four hundred thousand, seven hundred fifty-nine".