347442403387 has 4 divisors (see below), whose sum is σ = 347455107936. Its totient is φ = 347429698840.

The previous prime is 347442403379. The next prime is 347442403403. The reversal of 347442403387 is 783304244743.

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

It is a cyclic number.

It is not a de Polignac number, because 347442403387 - 2³ = 347442403379 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 347442403387.

It is not an unprimeable number, because it can be changed into a prime (347442403307) 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, 6311164 + ... + 6365977.

It is an arithmetic number, because the mean of its divisors is an integer number (86863776984).

Almost surely, 2^347442403387 is an apocalyptic number.

347442403387 is a deficient number, since it is larger than the sum of its proper divisors (12704549).

347442403387 is a wasteful number, since it uses less digits than its factorization.

347442403387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12704548.

The product of its (nonzero) digits is 5419008, while the sum is 49.

The spelling of 347442403387 in words is "three hundred forty-seven billion, four hundred forty-two million, four hundred three thousand, three hundred eighty-seven".