2160487 has 4 divisors (see below), whose sum is σ = 2469136. Its totient is φ = 1851840.

The previous prime is 2160469. The next prime is 2160527. The reversal of 2160487 is 7840612.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2160487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2160787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154314 + ... + 154327.

It is an arithmetic number, because the mean of its divisors is an integer number (617284).

2^2160487 is an apocalyptic number.

2160487 is a deficient number, since it is larger than the sum of its proper divisors (308649).

2160487 is an equidigital number, since it uses as much as digits as its factorization.

2160487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308648.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2160487 is about 1469.8595170968. The cubic root of 2160487 is about 129.2757955765.

The spelling of 2160487 in words is "two million, one hundred sixty thousand, four hundred eighty-seven".