34123871 has 4 divisors (see below), whose sum is σ = 34180152. Its totient is φ = 34067592.

The previous prime is 34123861. The next prime is 34123919. The reversal of 34123871 is 17832143.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34123871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34123861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27221 + ... + 28446.

It is an arithmetic number, because the mean of its divisors is an integer number (8545038).

Almost surely, 2^34123871 is an apocalyptic number.

34123871 is a deficient number, since it is larger than the sum of its proper divisors (56281).

34123871 is an equidigital number, since it uses as much as digits as its factorization.

34123871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56280.

The product of its digits is 4032, while the sum is 29.

The square root of 34123871 is about 5841.5640884955. The cubic root of 34123871 is about 324.3541287527.

The spelling of 34123871 in words is "thirty-four million, one hundred twenty-three thousand, eight hundred seventy-one".