34428839 has 2 divisors, whose sum is σ = 34428840. Its totient is φ = 34428838.

The previous prime is 34428803. The next prime is 34428847. The reversal of 34428839 is 93882443.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34428839 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 34428796 and 34428805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34428869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17214419 + 17214420.

It is an arithmetic number, because the mean of its divisors is an integer number (17214420).

Almost surely, 2^34428839 is an apocalyptic number.

34428839 is a deficient number, since it is larger than the sum of its proper divisors (1).

34428839 is an equidigital number, since it uses as much as digits as its factorization.

34428839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 41.

The square root of 34428839 is about 5867.6093087390. The cubic root of 34428839 is about 325.3175247859.

The spelling of 34428839 in words is "thirty-four million, four hundred twenty-eight thousand, eight hundred thirty-nine".