34039813 has 2 divisors, whose sum is σ = 34039814. Its totient is φ = 34039812.

The previous prime is 34039807. The next prime is 34039879. The reversal of 34039813 is 31893043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17123044 + 16916769 = 4138^2 + 4113^2 .

It is a cyclic number.

It is not a de Polignac number, because 34039813 - 2²¹ = 31942661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34039513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17019906 + 17019907.

It is an arithmetic number, because the mean of its divisors is an integer number (17019907).

Almost surely, 2^34039813 is an apocalyptic number.

It is an amenable number.

34039813 is a deficient number, since it is larger than the sum of its proper divisors (1).

34039813 is an equidigital number, since it uses as much as digits as its factorization.

34039813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 34039813 is about 5834.3648326103. The cubic root of 34039813 is about 324.0875804748.

The spelling of 34039813 in words is "thirty-four million, thirty-nine thousand, eight hundred thirteen".