34780939 has 2 divisors, whose sum is σ = 34780940. Its totient is φ = 34780938.

The previous prime is 34780931. The next prime is 34780969. The reversal of 34780939 is 93908743.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34780939 - 2³ = 34780931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 34780895 and 34780904.

It is not a weakly prime, because it can be changed into another prime (34780931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17390469 + 17390470.

It is an arithmetic number, because the mean of its divisors is an integer number (17390470).

Almost surely, 2^34780939 is an apocalyptic number.

34780939 is a deficient number, since it is larger than the sum of its proper divisors (1).

34780939 is an equidigital number, since it uses as much as digits as its factorization.

34780939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 34780939 is about 5897.5366891610. The cubic root of 34780939 is about 326.4227612674.

The spelling of 34780939 in words is "thirty-four million, seven hundred eighty thousand, nine hundred thirty-nine".