34874789 has 2 divisors, whose sum is σ = 34874790. Its totient is φ = 34874788.

The previous prime is 34874779. The next prime is 34874797. The reversal of 34874789 is 98747843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29789764 + 5085025 = 5458^2 + 2255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34874789 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34874729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17437394 + 17437395.

It is an arithmetic number, because the mean of its divisors is an integer number (17437395).

Almost surely, 2^34874789 is an apocalyptic number.

It is an amenable number.

34874789 is a deficient number, since it is larger than the sum of its proper divisors (1).

34874789 is an equidigital number, since it uses as much as digits as its factorization.

34874789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1354752, while the sum is 50.

The square root of 34874789 is about 5905.4880407973. The cubic root of 34874789 is about 326.7160949547.

The spelling of 34874789 in words is "thirty-four million, eight hundred seventy-four thousand, seven hundred eighty-nine".