34256789 has 4 divisors (see below), whose sum is σ = 39150624. Its totient is φ = 29362956.

The previous prime is 34256777. The next prime is 34256809. The reversal of 34256789 is 98765243.

34256789 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 not a de Polignac number, because 34256789 - 2⁴ = 34256773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34256759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2446907 + ... + 2446920.

It is an arithmetic number, because the mean of its divisors is an integer number (9787656).

Almost surely, 2^34256789 is an apocalyptic number.

It is an amenable number.

34256789 is a deficient number, since it is larger than the sum of its proper divisors (4893835).

34256789 is an equidigital number, since it uses as much as digits as its factorization.

34256789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893834.

The product of its digits is 362880, while the sum is 44.

The square root of 34256789 is about 5852.9299500336. The cubic root of 34256789 is about 324.7747204081.

The spelling of 34256789 in words is "thirty-four million, two hundred fifty-six thousand, seven hundred eighty-nine".