2259739 has 2 divisors, whose sum is σ = 2259740. Its totient is φ = 2259738.

The previous prime is 2259731. The next prime is 2259769. The reversal of 2259739 is 9379522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2259739 - 2³ = 2259731 is a prime.

2259739 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2259698 and 2259707.

It is not a weakly prime, because it can be changed into another prime (2259731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1129869 + 1129870.

It is an arithmetic number, because the mean of its divisors is an integer number (1129870).

2^2259739 is an apocalyptic number.

2259739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2259739 is an equidigital number, since it uses as much as digits as its factorization.

2259739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 37.

The square root of 2259739 is about 1503.2428280221. The cubic root of 2259739 is about 131.2258598082.

The spelling of 2259739 in words is "two million, two hundred fifty-nine thousand, seven hundred thirty-nine".