34678009 has 4 divisors (see below), whose sum is σ = 34724340. Its totient is φ = 34631680.

The previous prime is 34677961. The next prime is 34678013. The reversal of 34678009 is 90087643.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90087643 = 31 ⋅2906053.

It can be written as a sum of positive squares in 2 ways, for example, as 14175225 + 20502784 = 3765^2 + 4528^2 .

It is a cyclic number.

It is not a de Polignac number, because 34678009 - 2¹⁵ = 34645241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34678099) 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, 22024 + ... + 23545.

It is an arithmetic number, because the mean of its divisors is an integer number (8681085).

Almost surely, 2^34678009 is an apocalyptic number.

It is an amenable number.

34678009 is a deficient number, since it is larger than the sum of its proper divisors (46331).

34678009 is an equidigital number, since it uses as much as digits as its factorization.

34678009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46330.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 34678009 is about 5888.8036985452. The cubic root of 34678009 is about 326.1004401518.

It can be divided in two parts, 3467 and 8009, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 34678009 in words is "thirty-four million, six hundred seventy-eight thousand, nine".