3420867565 has 4 divisors (see below), whose sum is σ = 4105041084. Its totient is φ = 2736694048.

The previous prime is 3420867529. The next prime is 3420867581. The reversal of 3420867565 is 5657680243.

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 1143860041 + 2277007524 = 33821^2 + 47718^2 .

It is a cyclic number.

It is not a de Polignac number, because 3420867565 - 2¹⁵ = 3420834797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342086752 + ... + 342086761.

It is an arithmetic number, because the mean of its divisors is an integer number (1026260271).

Almost surely, 2^3420867565 is an apocalyptic number.

It is an amenable number.

3420867565 is a deficient number, since it is larger than the sum of its proper divisors (684173519).

3420867565 is an equidigital number, since it uses as much as digits as its factorization.

3420867565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684173518.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The square root of 3420867565 is about 58488.1831227471. The cubic root of 3420867565 is about 1506.7646420339.

The spelling of 3420867565 in words is "three billion, four hundred twenty million, eight hundred sixty-seven thousand, five hundred sixty-five".