2586961 has 4 divisors (see below), whose sum is σ = 2785972. Its totient is φ = 2387952.

The previous prime is 2586959. The next prime is 2586967. The reversal of 2586961 is 1696852.

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 1742400 + 844561 = 1320^2 + 919^2 .

It is a cyclic number.

It is not a de Polignac number, because 2586961 - 2¹ = 2586959 is a prime.

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 2586961.

It is not an unprimeable number, because it can be changed into a prime (2586967) 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, 99486 + ... + 99511.

It is an arithmetic number, because the mean of its divisors is an integer number (696493).

2^2586961 is an apocalyptic number.

It is an amenable number.

2586961 is a deficient number, since it is larger than the sum of its proper divisors (199011).

2586961 is a wasteful number, since it uses less digits than its factorization.

2586961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199010.

The product of its digits is 25920, while the sum is 37.

The square root of 2586961 is about 1608.4032454581. The cubic root of 2586961 is about 137.2766356955.

The spelling of 2586961 in words is "two million, five hundred eighty-six thousand, nine hundred sixty-one".