2605714289 has 4 divisors (see below), whose sum is σ = 2606722560. Its totient is φ = 2604706020.

The previous prime is 2605714211. The next prime is 2605714297. The reversal of 2605714289 is 9824175062.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2605714289 - 2²⁴ = 2588937073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2605713289) 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, 500249 + ... + 505430.

It is an arithmetic number, because the mean of its divisors is an integer number (651680640).

Almost surely, 2^2605714289 is an apocalyptic number.

It is an amenable number.

2605714289 is a deficient number, since it is larger than the sum of its proper divisors (1008271).

2605714289 is a wasteful number, since it uses less digits than its factorization.

2605714289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008270.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2605714289 is about 51046.1975959033. The cubic root of 2605714289 is about 1376.0755070070.

The spelling of 2605714289 in words is "two billion, six hundred five million, seven hundred fourteen thousand, two hundred eighty-nine".