34971809 has 2 divisors, whose sum is σ = 34971810. Its totient is φ = 34971808.

The previous prime is 34971787. The next prime is 34971821. The reversal of 34971809 is 90817943.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23309584 + 11662225 = 4828^2 + 3415^2 .

It is a cyclic number.

It is not a de Polignac number, because 34971809 - 2¹⁶ = 34906273 is a prime.

It is not a weakly prime, because it can be changed into another prime (34971829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17485904 + 17485905.

It is an arithmetic number, because the mean of its divisors is an integer number (17485905).

Almost surely, 2^34971809 is an apocalyptic number.

It is an amenable number.

34971809 is a deficient number, since it is larger than the sum of its proper divisors (1).

34971809 is an equidigital number, since it uses as much as digits as its factorization.

34971809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 34971809 is about 5913.6967287814. The cubic root of 34971809 is about 327.0187839715.

The spelling of 34971809 in words is "thirty-four million, nine hundred seventy-one thousand, eight hundred nine".