34643261 has 2 divisors, whose sum is σ = 34643262. Its totient is φ = 34643260.

The previous prime is 34643249. The next prime is 34643293. The reversal of 34643261 is 16234643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24940036 + 9703225 = 4994^2 + 3115^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34643261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34643761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17321630 + 17321631.

It is an arithmetic number, because the mean of its divisors is an integer number (17321631).

Almost surely, 2^34643261 is an apocalyptic number.

It is an amenable number.

34643261 is a deficient number, since it is larger than the sum of its proper divisors (1).

34643261 is an equidigital number, since it uses as much as digits as its factorization.

34643261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 29.

The square root of 34643261 is about 5885.8526145326. The cubic root of 34643261 is about 325.9914842143.

The spelling of 34643261 in words is "thirty-four million, six hundred forty-three thousand, two hundred sixty-one".