34689247 has 2 divisors, whose sum is σ = 34689248. Its totient is φ = 34689246.

The previous prime is 34689223. The next prime is 34689253. The reversal of 34689247 is 74298643.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34689247 - 2¹¹ = 34687199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34689287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17344623 + 17344624.

It is an arithmetic number, because the mean of its divisors is an integer number (17344624).

Almost surely, 2^34689247 is an apocalyptic number.

34689247 is a deficient number, since it is larger than the sum of its proper divisors (1).

34689247 is an equidigital number, since it uses as much as digits as its factorization.

34689247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 34689247 is about 5889.7578048677. The cubic root of 34689247 is about 326.1356624829.

The spelling of 34689247 in words is "thirty-four million, six hundred eighty-nine thousand, two hundred forty-seven".