240887 has 4 divisors (see below), whose sum is σ = 242760. Its totient is φ = 239016.

The previous prime is 240883. The next prime is 240893. The reversal of 240887 is 788042.

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 240887 - 2² = 240883 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 (240881) 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, 728 + ... + 1005.

It is an arithmetic number, because the mean of its divisors is an integer number (60690).

2²⁴⁰⁸⁸⁷ is an apocalyptic number.

240887 is a deficient number, since it is larger than the sum of its proper divisors (1873).

240887 is a wasteful number, since it uses less digits than its factorization.

240887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 240887 is about 490.8024042321. The cubic root of 240887 is about 62.2211147526.

The spelling of 240887 in words is "two hundred forty thousand, eight hundred eighty-seven".