34687649 has 2 divisors, whose sum is σ = 34687650. Its totient is φ = 34687648.

The previous prime is 34687607. The next prime is 34687669. The reversal of 34687649 is 94678643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29593600 + 5094049 = 5440^2 + 2257^2 .

It is an emirp because it is prime and its reverse (94678643) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34687649 - 2²⁴ = 17910433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34687669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17343824 + 17343825.

It is an arithmetic number, because the mean of its divisors is an integer number (17343825).

Almost surely, 2^34687649 is an apocalyptic number.

It is an amenable number.

34687649 is a deficient number, since it is larger than the sum of its proper divisors (1).

34687649 is an equidigital number, since it uses as much as digits as its factorization.

34687649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 47.

The square root of 34687649 is about 5889.6221440768. The cubic root of 34687649 is about 326.1306544680.

The spelling of 34687649 in words is "thirty-four million, six hundred eighty-seven thousand, six hundred forty-nine".