34789678 has 32 divisors (see below), whose sum is σ = 65634048. Its totient is φ = 13547160.

The previous prime is 34789673. The next prime is 34789687. The reversal of 34789678 is 87698743.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34789673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17701 + ... + 19567.

It is an arithmetic number, because the mean of its divisors is an integer number (2051064).

Almost surely, 2^34789678 is an apocalyptic number.

34789678 is a deficient number, since it is larger than the sum of its proper divisors (30844370).

34789678 is a wasteful number, since it uses less digits than its factorization.

34789678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909 (or 1887 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 52.

The square root of 34789678 is about 5898.2775451822. The cubic root of 34789678 is about 326.4500977886.

The spelling of 34789678 in words is "thirty-four million, seven hundred eighty-nine thousand, six hundred seventy-eight".