347985841 has 4 divisors (see below), whose sum is σ = 397698112. Its totient is φ = 298273572.

The previous prime is 347985829. The next prime is 347985853. The reversal of 347985841 is 148589743.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148589743 = 37 ⋅4015939.

It is an interprime number because it is at equal distance from previous prime (347985829) and next prime (347985853).

It is a cyclic number.

It is not a de Polignac number, because 347985841 - 2¹⁷ = 347854769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (347985641) 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, 24856125 + ... + 24856138.

It is an arithmetic number, because the mean of its divisors is an integer number (99424528).

Almost surely, 2^347985841 is an apocalyptic number.

It is an amenable number.

347985841 is a deficient number, since it is larger than the sum of its proper divisors (49712271).

347985841 is an equidigital number, since it uses as much as digits as its factorization.

347985841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49712270.

The product of its digits is 967680, while the sum is 49.

The square root of 347985841 is about 18654.3786012829. The cubic root of 347985841 is about 703.3754259802.

The spelling of 347985841 in words is "three hundred forty-seven million, nine hundred eighty-five thousand, eight hundred forty-one".