34789681 has 4 divisors (see below), whose sum is σ = 34802212. Its totient is φ = 34777152.

The previous prime is 34789673. The next prime is 34789687. The reversal of 34789681 is 18698743.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2117025 + 32672656 = 1455^2 + 5716^2 .

It is a cyclic number.

It is not a de Polignac number, because 34789681 - 2³ = 34789673 is a prime.

It is a super-4 number, since 4×34789681⁴ (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34789687) 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, 36 + ... + 8341.

It is an arithmetic number, because the mean of its divisors is an integer number (8700553).

Almost surely, 2^34789681 is an apocalyptic number.

It is an amenable number.

34789681 is a deficient number, since it is larger than the sum of its proper divisors (12531).

34789681 is an equidigital number, since it uses as much as digits as its factorization.

34789681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12530.

The product of its digits is 290304, while the sum is 46.

The square root of 34789681 is about 5898.2777994937. The cubic root of 34789681 is about 326.4501071721.

The spelling of 34789681 in words is "thirty-four million, seven hundred eighty-nine thousand, six hundred eighty-one".