34339945 has 4 divisors (see below), whose sum is σ = 41207940. Its totient is φ = 27471952.

The previous prime is 34339933. The next prime is 34339951. The reversal of 34339945 is 54993343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54993343 = 3709 ⋅14827.

It can be written as a sum of positive squares in 2 ways, for example, as 8503056 + 25836889 = 2916^2 + 5083^2 .

It is a cyclic number.

It is not a de Polignac number, because 34339945 - 2⁷ = 34339817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34339898 and 34339907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3433990 + ... + 3433999.

It is an arithmetic number, because the mean of its divisors is an integer number (10301985).

Almost surely, 2^34339945 is an apocalyptic number.

It is an amenable number.

34339945 is a deficient number, since it is larger than the sum of its proper divisors (6867995).

34339945 is an equidigital number, since it uses as much as digits as its factorization.

34339945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6867994.

The product of its digits is 174960, while the sum is 40.

The square root of 34339945 is about 5860.0294367861. The cubic root of 34339945 is about 325.0372974947.

The spelling of 34339945 in words is "thirty-four million, three hundred thirty-nine thousand, nine hundred forty-five".