34423989 has 4 divisors (see below), whose sum is σ = 45898656. Its totient is φ = 22949324.

The previous prime is 34423979. The next prime is 34423999. The reversal of 34423989 is 98932443.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (34423979) and next prime (34423999).

It is a cyclic number.

It is not a de Polignac number, because 34423989 - 2⁴ = 34423973 is a prime.

It is a super-2 number, since 2×34423989² = 2370022037344242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 34423989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34423979) 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, 5737329 + ... + 5737334.

It is an arithmetic number, because the mean of its divisors is an integer number (11474664).

Almost surely, 2^34423989 is an apocalyptic number.

It is an amenable number.

34423989 is a deficient number, since it is larger than the sum of its proper divisors (11474667).

34423989 is a wasteful number, since it uses less digits than its factorization.

34423989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11474666.

The product of its digits is 186624, while the sum is 42.

The square root of 34423989 is about 5867.1960083161. The cubic root of 34423989 is about 325.3022482122.

The spelling of 34423989 in words is "thirty-four million, four hundred twenty-three thousand, nine hundred eighty-nine".