34307381 has 2 divisors, whose sum is σ = 34307382. Its totient is φ = 34307380.

The previous prime is 34307341. The next prime is 34307387. The reversal of 34307381 is 18370343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22515025 + 11792356 = 4745^2 + 3434^2 .

It is an emirp because it is prime and its reverse (18370343) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34307381 is a prime.

It is a super-3 number, since 3×34307381³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34307387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17153690 + 17153691.

It is an arithmetic number, because the mean of its divisors is an integer number (17153691).

Almost surely, 2^34307381 is an apocalyptic number.

It is an amenable number.

34307381 is a deficient number, since it is larger than the sum of its proper divisors (1).

34307381 is an equidigital number, since it uses as much as digits as its factorization.

34307381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 34307381 is about 5857.2502934397. The cubic root of 34307381 is about 324.9345225094.

The spelling of 34307381 in words is "thirty-four million, three hundred seven thousand, three hundred eighty-one".