34721656 has 8 divisors (see below), whose sum is σ = 65103120. Its totient is φ = 17360824.

The previous prime is 34721641. The next prime is 34721657. The reversal of 34721656 is 65612743.

It is a happy number.

34721656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

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 (34721657) 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 as a sum of consecutive naturals, namely, 2170096 + ... + 2170111.

It is an arithmetic number, because the mean of its divisors is an integer number (8137890).

Almost surely, 2^34721656 is an apocalyptic number.

It is an amenable number.

34721656 is a deficient number, since it is larger than the sum of its proper divisors (30381464).

34721656 is a wasteful number, since it uses less digits than its factorization.

34721656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340213 (or 4340209 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 34721656 is about 5892.5084641433. The cubic root of 34721656 is about 326.2371967397.

The spelling of 34721656 in words is "thirty-four million, seven hundred twenty-one thousand, six hundred fifty-six".