34878539 has 2 divisors, whose sum is σ = 34878540. Its totient is φ = 34878538.

The previous prime is 34878527. The next prime is 34878541. The reversal of 34878539 is 93587843.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34878539 is a prime.

Together with 34878541, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 34878493 and 34878502.

It is not a weakly prime, because it can be changed into another prime (34878839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17439269 + 17439270.

It is an arithmetic number, because the mean of its divisors is an integer number (17439270).

Almost surely, 2^34878539 is an apocalyptic number.

34878539 is a deficient number, since it is larger than the sum of its proper divisors (1).

34878539 is an equidigital number, since it uses as much as digits as its factorization.

34878539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The square root of 34878539 is about 5905.8055335407. The cubic root of 34878539 is about 326.7278048602.

It can be divided in two parts, 348 and 78539, that added together give a palindrome (78887).

The spelling of 34878539 in words is "thirty-four million, eight hundred seventy-eight thousand, five hundred thirty-nine".