340587 has 24 divisors (see below), whose sum is σ = 550368. Its totient is φ = 201600.

The previous prime is 340583. The next prime is 340591. The reversal of 340587 is 785043.

It is an interprime number because it is at equal distance from previous prime (340583) and next prime (340591).

It is not a de Polignac number, because 340587 - 2² = 340583 is a prime.

340587 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 340587.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340587.

It is not an unprimeable number, because it can be changed into a prime (340583) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4762 + ... + 4832.

It is an arithmetic number, because the mean of its divisors is an integer number (22932).

2³⁴⁰⁵⁸⁷ is an apocalyptic number.

340587 is a deficient number, since it is larger than the sum of its proper divisors (209781).

340587 is a wasteful number, since it uses less digits than its factorization.

340587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 340587 is about 583.5983207652. The cubic root of 340587 is about 69.8354638985.

The spelling of 340587 in words is "three hundred forty thousand, five hundred eighty-seven".