342887287 has 4 divisors (see below), whose sum is σ = 342958816. Its totient is φ = 342815760.

The previous prime is 342887273. The next prime is 342887323. The reversal of 342887287 is 782788243.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342887287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 342887287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342887257) 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, 28014 + ... + 38347.

It is an arithmetic number, because the mean of its divisors is an integer number (85739704).

Almost surely, 2^342887287 is an apocalyptic number.

342887287 is a deficient number, since it is larger than the sum of its proper divisors (71529).

342887287 is an equidigital number, since it uses as much as digits as its factorization.

342887287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71528.

The product of its digits is 1204224, while the sum is 49.

The square root of 342887287 is about 18517.2159624496. The cubic root of 342887287 is about 699.9233160895.

The spelling of 342887287 in words is "three hundred forty-two million, eight hundred eighty-seven thousand, two hundred eighty-seven".