34639513 has 2 divisors, whose sum is σ = 34639514. Its totient is φ = 34639512.

The previous prime is 34639487. The next prime is 34639529. The reversal of 34639513 is 31593643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33953929 + 685584 = 5827^2 + 828^2 .

It is an emirp because it is prime and its reverse (31593643) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34639513 - 2¹³ = 34631321 is a prime.

It is not a weakly prime, because it can be changed into another prime (34633513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17319756 + 17319757.

It is an arithmetic number, because the mean of its divisors is an integer number (17319757).

Almost surely, 2^34639513 is an apocalyptic number.

It is an amenable number.

34639513 is a deficient number, since it is larger than the sum of its proper divisors (1).

34639513 is an equidigital number, since it uses as much as digits as its factorization.

34639513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 34.

The square root of 34639513 is about 5885.5342153453. The cubic root of 34639513 is about 325.9797276214.

The spelling of 34639513 in words is "thirty-four million, six hundred thirty-nine thousand, five hundred thirteen".