34666381 has 2 divisors, whose sum is σ = 34666382. Its totient is φ = 34666380.

The previous prime is 34666369. The next prime is 34666409. The reversal of 34666381 is 18366643.

34666381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23716900 + 10949481 = 4870^2 + 3309^2 .

It is a cyclic number.

It is not a de Polignac number, because 34666381 - 2²⁵ = 1111949 is a prime.

It is a super-2 number, since 2×34666381² = 2403515943274322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 34666381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34666321) 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, 17333190 + 17333191.

It is an arithmetic number, because the mean of its divisors is an integer number (17333191).

Almost surely, 2^34666381 is an apocalyptic number.

It is an amenable number.

34666381 is a deficient number, since it is larger than the sum of its proper divisors (1).

34666381 is an equidigital number, since it uses as much as digits as its factorization.

34666381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 37.

The square root of 34666381 is about 5887.8163184665. The cubic root of 34666381 is about 326.0639874648.

The spelling of 34666381 in words is "thirty-four million, six hundred sixty-six thousand, three hundred eighty-one".