34387289 has 4 divisors (see below), whose sum is σ = 34402020. Its totient is φ = 34372560.

The previous prime is 34387273. The next prime is 34387291. The reversal of 34387289 is 98278343.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17305600 + 17081689 = 4160^2 + 4133^2 .

It is a cyclic number.

It is not a de Polignac number, because 34387289 - 2⁴ = 34387273 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34387219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3002 + ... + 8819.

It is an arithmetic number, because the mean of its divisors is an integer number (8600505).

Almost surely, 2^34387289 is an apocalyptic number.

It is an amenable number.

34387289 is a deficient number, since it is larger than the sum of its proper divisors (14731).

34387289 is a wasteful number, since it uses less digits than its factorization.

34387289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14730.

The product of its digits is 290304, while the sum is 44.

The square root of 34387289 is about 5864.0676155720. The cubic root of 34387289 is about 325.1866036863.

The spelling of 34387289 in words is "thirty-four million, three hundred eighty-seven thousand, two hundred eighty-nine".