343185887 has 12 divisors (see below), whose sum is σ = 377817888. Its totient is φ = 311493600.

The previous prime is 343185863. The next prime is 343185901. The reversal of 343185887 is 788581343.

It is a happy number.

It is not a de Polignac number, because 343185887 - 2⁶ = 343185823 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 (343185287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90218 + ... + 93944.

It is an arithmetic number, because the mean of its divisors is an integer number (31484824).

Almost surely, 2^343185887 is an apocalyptic number.

343185887 is a deficient number, since it is larger than the sum of its proper divisors (34632001).

343185887 is a wasteful number, since it uses less digits than its factorization.

343185887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4510 (or 4499 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 343185887 is about 18525.2769749874. The cubic root of 343185887 is about 700.1264309047.

The spelling of 343185887 in words is "three hundred forty-three million, one hundred eighty-five thousand, eight hundred eighty-seven".