2258709 has 4 divisors (see below), whose sum is σ = 3011616. Its totient is φ = 1505804.

The previous prime is 2258657. The next prime is 2258713. The reversal of 2258709 is 9078522.

2258709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2258709 - 2⁸ = 2258453 is a prime.

It is a D-number.

It is a Curzon number.

2258709 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2258709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376449 + ... + 376454.

It is an arithmetic number, because the mean of its divisors is an integer number (752904).

2^2258709 is an apocalyptic number.

It is an amenable number.

2258709 is a deficient number, since it is larger than the sum of its proper divisors (752907).

2258709 is an equidigital number, since it uses as much as digits as its factorization.

2258709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752906.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 2258709 is about 1502.9001962872. The cubic root of 2258709 is about 131.2059189837.

The spelling of 2258709 in words is "two million, two hundred fifty-eight thousand, seven hundred nine".