2587966 has 4 divisors (see below), whose sum is σ = 3881952. Its totient is φ = 1293982.

The previous prime is 2587957. The next prime is 2587967. The reversal of 2587966 is 6697852.

It is a semiprime because it is the product of two primes.

It is a congruent 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 as a sum of consecutive naturals, namely, 646990 + ... + 646993.

It is an arithmetic number, because the mean of its divisors is an integer number (970488).

2^2587966 is an apocalyptic number.

2587966 is a deficient number, since it is larger than the sum of its proper divisors (1293986).

2587966 is a wasteful number, since it uses less digits than its factorization.

2587966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293985.

The product of its digits is 181440, while the sum is 43.

The square root of 2587966 is about 1608.7156367736. The cubic root of 2587966 is about 137.2944101107.

It can be divided in two parts, 2587 and 966, that added together give a palindrome (3553).

The spelling of 2587966 in words is "two million, five hundred eighty-seven thousand, nine hundred sixty-six".