2659965 has 64 divisors (see below), whose sum is σ = 5529600. Its totient is φ = 1081920.

The previous prime is 2659963. The next prime is 2659999. The reversal of 2659965 is 5699562.

It is not a de Polignac number, because 2659965 - 2¹ = 2659963 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2659963) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56572 + ... + 56618.

It is an arithmetic number, because the mean of its divisors is an integer number (86400).

2^2659965 is an apocalyptic number.

It is an amenable number.

2659965 is an abundant number, since it is smaller than the sum of its proper divisors (2869635).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2659965 is a wasteful number, since it uses less digits than its factorization.

2659965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 73 counting only the distinct ones).

The product of its digits is 145800, while the sum is 42.

The square root of 2659965 is about 1630.9399130563. The cubic root of 2659965 is about 138.5559905165. Note that the first 3 decimals are identical.

The spelling of 2659965 in words is "two million, six hundred fifty-nine thousand, nine hundred sixty-five".