342887 has 4 divisors (see below), whose sum is σ = 346320. Its totient is φ = 339456.

The previous prime is 342871. The next prime is 342889. The reversal of 342887 is 788243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 788243 = 337 ⋅2339.

It is a cyclic number.

It is not a de Polignac number, because 342887 - 2⁴ = 342871 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342887.

It is not an unprimeable number, because it can be changed into a prime (342889) 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, 1562 + ... + 1767.

It is an arithmetic number, because the mean of its divisors is an integer number (86580).

2³⁴²⁸⁸⁷ is an apocalyptic number.

342887 is a deficient number, since it is larger than the sum of its proper divisors (3433).

342887 is a wasteful number, since it uses less digits than its factorization.

342887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432.

The product of its digits is 10752, while the sum is 32.

The square root of 342887 is about 585.5655386035. The cubic root of 342887 is about 69.9923120809.

The spelling of 342887 in words is "three hundred forty-two thousand, eight hundred eighty-seven".