347984859 has 4 divisors (see below), whose sum is σ = 463979816. Its totient is φ = 231989904.

The previous prime is 347984839. The next prime is 347984869. The reversal of 347984859 is 958489743.

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

It is not a de Polignac number, because 347984859 - 2⁷ = 347984731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 347984799 and 347984808.

It is not an unprimeable number, because it can be changed into a prime (347984839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57997474 + ... + 57997479.

It is an arithmetic number, because the mean of its divisors is an integer number (115994954).

Almost surely, 2^347984859 is an apocalyptic number.

347984859 is a deficient number, since it is larger than the sum of its proper divisors (115994957).

347984859 is a wasteful number, since it uses less digits than its factorization.

347984859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115994956.

The product of its digits is 8709120, while the sum is 57.

The square root of 347984859 is about 18654.3522803661. The cubic root of 347984859 is about 703.3747643486.

It can be divided in two parts, 347984 and 859, that added together give a palindrome (348843).

The spelling of 347984859 in words is "three hundred forty-seven million, nine hundred eighty-four thousand, eight hundred fifty-nine".