34339681 has 2 divisors, whose sum is σ = 34339682. Its totient is φ = 34339680.

The previous prime is 34339619. The next prime is 34339691. The reversal of 34339681 is 18693343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34339600 + 81 = 5860^2 + 9^2 .

It is a cyclic number.

It is not a de Polignac number, because 34339681 - 2⁹ = 34339169 is a prime.

It is a super-2 number, since 2×34339681² = 2358427382363522, 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 34339681.

It is not a weakly prime, because it can be changed into another prime (34339691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17169840 + 17169841.

It is an arithmetic number, because the mean of its divisors is an integer number (17169841).

Almost surely, 2^34339681 is an apocalyptic number.

It is an amenable number.

34339681 is a deficient number, since it is larger than the sum of its proper divisors (1).

34339681 is an equidigital number, since it uses as much as digits as its factorization.

34339681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 37.

The square root of 34339681 is about 5860.0069112587. The cubic root of 34339681 is about 325.0364645476.

It can be divided in two parts, 343396 and 81, that multiplied together give a square (27815076 = 5274²).

The spelling of 34339681 in words is "thirty-four million, three hundred thirty-nine thousand, six hundred eighty-one".