2587961 has 16 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 2296320.

The previous prime is 2587957. The next prime is 2587967. The reversal of 2587961 is 1697852.

It is a cyclic number.

It is not a de Polignac number, because 2587961 - 2² = 2587957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2587967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32720 + ... + 32798.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^2587961 is an apocalyptic number.

It is an amenable number.

2587961 is a deficient number, since it is larger than the sum of its proper divisors (315079).

2587961 is a wasteful number, since it uses less digits than its factorization.

2587961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184.

The product of its digits is 30240, while the sum is 38.

The square root of 2587961 is about 1608.7140827381. The cubic root of 2587961 is about 137.2943216922.

The spelling of 2587961 in words is "two million, five hundred eighty-seven thousand, nine hundred sixty-one".