34423891 has 2 divisors, whose sum is σ = 34423892. Its totient is φ = 34423890.

The previous prime is 34423889. The next prime is 34423901. The reversal of 34423891 is 19832443.

It is a weak prime.

It is an emirp because it is prime and its reverse (19832443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34423891 - 2¹ = 34423889 is a prime.

Together with 34423889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (34423391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17211945 + 17211946.

It is an arithmetic number, because the mean of its divisors is an integer number (17211946).

Almost surely, 2^34423891 is an apocalyptic number.

34423891 is a deficient number, since it is larger than the sum of its proper divisors (1).

34423891 is an equidigital number, since it uses as much as digits as its factorization.

34423891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The square root of 34423891 is about 5867.1876567909. The cubic root of 34423891 is about 325.3019395162.

The spelling of 34423891 in words is "thirty-four million, four hundred twenty-three thousand, eight hundred ninety-one".