34585381 has 2 divisors, whose sum is σ = 34585382. Its totient is φ = 34585380.

The previous prime is 34585379. The next prime is 34585391. The reversal of 34585381 is 18358543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29062881 + 5522500 = 5391^2 + 2350^2 .

It is a cyclic number.

It is not a de Polignac number, because 34585381 - 2¹ = 34585379 is a prime.

It is a super-2 number, since 2×34585381² = 2392297157830322, which contains 22 as substring.

Together with 34585379, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 34585381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34585321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17292690 + 17292691.

It is an arithmetic number, because the mean of its divisors is an integer number (17292691).

Almost surely, 2^34585381 is an apocalyptic number.

It is an amenable number.

34585381 is a deficient number, since it is larger than the sum of its proper divisors (1).

34585381 is an equidigital number, since it uses as much as digits as its factorization.

34585381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 37.

The square root of 34585381 is about 5880.9336843736. The cubic root of 34585381 is about 325.8098336383.

The spelling of 34585381 in words is "thirty-four million, five hundred eighty-five thousand, three hundred eighty-one".