2606965 has 4 divisors (see below), whose sum is σ = 3128364. Its totient is φ = 2085568.

The previous prime is 2606963. The next prime is 2606969. The reversal of 2606965 is 5696062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5696062 = 2 ⋅2848031.

It can be written as a sum of positive squares in 2 ways, for example, as 599076 + 2007889 = 774^2 + 1417^2 .

It is a cyclic number.

It is not a de Polignac number, because 2606965 - 2¹ = 2606963 is a prime.

It is a super-2 number, since 2×2606965² = 13592533022450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2606965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2606963) 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, 260692 + ... + 260701.

It is an arithmetic number, because the mean of its divisors is an integer number (782091).

2^2606965 is an apocalyptic number.

It is an amenable number.

2606965 is a deficient number, since it is larger than the sum of its proper divisors (521399).

2606965 is an equidigital number, since it uses as much as digits as its factorization.

2606965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521398.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 2606965 is about 1614.6098599971. The cubic root of 2606965 is about 137.6295638264.

It can be divided in two parts, 260 and 6965, that added together give a square (7225 = 85²).

The spelling of 2606965 in words is "two million, six hundred six thousand, nine hundred sixty-five".