1260087 has 4 divisors (see below), whose sum is σ = 1680120. Its totient is φ = 840056.

The previous prime is 1260067. The next prime is 1260113. The reversal of 1260087 is 7800621.

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

It is a cyclic number.

It is not a de Polignac number, because 1260087 - 2¹¹ = 1258039 is a prime.

It is a D-number.

1260087 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260047) 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, 210012 + ... + 210017.

It is an arithmetic number, because the mean of its divisors is an integer number (420030).

2^1260087 is an apocalyptic number.

1260087 is a deficient number, since it is larger than the sum of its proper divisors (420033).

1260087 is an equidigital number, since it uses as much as digits as its factorization.

1260087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420032.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 1260087 is about 1122.5359682433. The cubic root of 1260087 is about 108.0107156720.

The spelling of 1260087 in words is "one million, two hundred sixty thousand, eighty-seven".