34839247 has 2 divisors, whose sum is σ = 34839248. Its totient is φ = 34839246.

The previous prime is 34839241. The next prime is 34839271. The reversal of 34839247 is 74293843.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34839247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34839241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17419623 + 17419624.

It is an arithmetic number, because the mean of its divisors is an integer number (17419624).

Almost surely, 2^34839247 is an apocalyptic number.

34839247 is a deficient number, since it is larger than the sum of its proper divisors (1).

34839247 is an equidigital number, since it uses as much as digits as its factorization.

34839247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 34839247 is about 5902.4780389257. The cubic root of 34839247 is about 326.6050683289.

The spelling of 34839247 in words is "thirty-four million, eight hundred thirty-nine thousand, two hundred forty-seven".