34000678 has 4 divisors (see below), whose sum is σ = 51001020. Its totient is φ = 17000338.

The previous prime is 34000667. The next prime is 34000679. The reversal of 34000678 is 87600043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87600043 = 53 ⋅1652831.

It is a super-2 number, since 2×34000678² = 2312092208919368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34000679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8500168 + ... + 8500171.

It is an arithmetic number, because the mean of its divisors is an integer number (12750255).

Almost surely, 2^34000678 is an apocalyptic number.

34000678 is a deficient number, since it is larger than the sum of its proper divisors (17000342).

34000678 is a wasteful number, since it uses less digits than its factorization.

34000678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17000341.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 34000678 is about 5831.0100325758. The cubic root of 34000678 is about 323.9633335025.

The spelling of 34000678 in words is "thirty-four million, six hundred seventy-eight", and thus it is an aban number.