2660487 has 8 divisors (see below), whose sum is σ = 3607680. Its totient is φ = 1743480.

The previous prime is 2660473. The next prime is 2660509. The reversal of 2660487 is 7840662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2660487 - 2¹² = 2656391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7339 + ... + 7692.

It is an arithmetic number, because the mean of its divisors is an integer number (450960).

2^2660487 is an apocalyptic number.

2660487 is a deficient number, since it is larger than the sum of its proper divisors (947193).

2660487 is a wasteful number, since it uses less digits than its factorization.

2660487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15093.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 2660487 is about 1631.0999356263. The cubic root of 2660487 is about 138.5650534799.

The spelling of 2660487 in words is "two million, six hundred sixty thousand, four hundred eighty-seven".