34009819 has 2 divisors, whose sum is σ = 34009820. Its totient is φ = 34009818.

The previous prime is 34009813. The next prime is 34009841. The reversal of 34009819 is 91890043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34009819 - 2⁹ = 34009307 is a prime.

It is a super-2 number, since 2×34009819² = 2313335576825522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (34009813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17004909 + 17004910.

It is an arithmetic number, because the mean of its divisors is an integer number (17004910).

Almost surely, 2^34009819 is an apocalyptic number.

34009819 is a deficient number, since it is larger than the sum of its proper divisors (1).

34009819 is an equidigital number, since it uses as much as digits as its factorization.

34009819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 34009819 is about 5831.7938063687. The cubic root of 34009819 is about 323.9923631538.

The spelling of 34009819 in words is "thirty-four million, nine thousand, eight hundred nineteen".