347877 has 6 divisors (see below), whose sum is σ = 502502. Its totient is φ = 231912.

The previous prime is 347873. The next prime is 347887. The reversal of 347877 is 778743.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 224676 + 123201 = 474^2 + 351^2 .

It is not a de Polignac number, because 347877 - 2² = 347873 is a prime.

It is a Duffinian number.

347877 is a lucky 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 347877.

It is not an unprimeable number, because it can be changed into a prime (347873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19318 + ... + 19335.

2³⁴⁷⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

347877 is a deficient number, since it is larger than the sum of its proper divisors (154625).

347877 is a wasteful number, since it uses less digits than its factorization.

347877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38659 (or 38656 counting only the distinct ones).

The product of its digits is 32928, while the sum is 36.

The square root of 347877 is about 589.8109866728. The cubic root of 347877 is about 70.3302085767.

The spelling of 347877 in words is "three hundred forty-seven thousand, eight hundred seventy-seven".