34285639 has 2 divisors, whose sum is σ = 34285640. Its totient is φ = 34285638.

The previous prime is 34285631. The next prime is 34285649. The reversal of 34285639 is 93658243.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34285639 - 2³ = 34285631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34285631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17142819 + 17142820.

It is an arithmetic number, because the mean of its divisors is an integer number (17142820).

Almost surely, 2^34285639 is an apocalyptic number.

34285639 is a deficient number, since it is larger than the sum of its proper divisors (1).

34285639 is an equidigital number, since it uses as much as digits as its factorization.

34285639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 40.

The square root of 34285639 is about 5855.3940089459. The cubic root of 34285639 is about 324.8658665418.

The spelling of 34285639 in words is "thirty-four million, two hundred eighty-five thousand, six hundred thirty-nine".