34780489 has 4 divisors (see below), whose sum is σ = 34792324. Its totient is φ = 34768656.

The previous prime is 34780463. The next prime is 34780511. The reversal of 34780489 is 98408743.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98408743 = 23 ⋅4278641.

It can be written as a sum of positive squares in 2 ways, for example, as 7112889 + 27667600 = 2667^2 + 5260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34780489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34780429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2239 + ... + 8635.

It is an arithmetic number, because the mean of its divisors is an integer number (8698081).

Almost surely, 2^34780489 is an apocalyptic number.

It is an amenable number.

34780489 is a deficient number, since it is larger than the sum of its proper divisors (11835).

34780489 is an equidigital number, since it uses as much as digits as its factorization.

34780489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11834.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 34780489 is about 5897.4985375157. The cubic root of 34780489 is about 326.4213534955.

The spelling of 34780489 in words is "thirty-four million, seven hundred eighty thousand, four hundred eighty-nine".