34423643 has 4 divisors (see below), whose sum is σ = 34438728. Its totient is φ = 34408560.

The previous prime is 34423639. The next prime is 34423679. The reversal of 34423643 is 34632443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34632443 = 2129 ⋅16267.

It is a cyclic number.

It is not a de Polignac number, because 34423643 - 2² = 34423639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34423633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3338 + ... + 8943.

It is an arithmetic number, because the mean of its divisors is an integer number (8609682).

Almost surely, 2^34423643 is an apocalyptic number.

34423643 is a deficient number, since it is larger than the sum of its proper divisors (15085).

34423643 is a wasteful number, since it uses less digits than its factorization.

34423643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15084.

The product of its digits is 20736, while the sum is 29.

The square root of 34423643 is about 5867.1665222661. The cubic root of 34423643 is about 325.3011583235.

The spelling of 34423643 in words is "thirty-four million, four hundred twenty-three thousand, six hundred forty-three".