347448891 has 8 divisors (see below), whose sum is σ = 463419904. Its totient is φ = 231555240.

The previous prime is 347448869. The next prime is 347448919. The reversal of 347448891 is 198844743.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 347448891 - 2¹¹ = 347446843 is a prime.

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 347448891.

It is not an unprimeable number, because it can be changed into a prime (347448191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7891 + ... + 27516.

It is an arithmetic number, because the mean of its divisors is an integer number (57927488).

Almost surely, 2^347448891 is an apocalyptic number.

347448891 is a deficient number, since it is larger than the sum of its proper divisors (115971013).

347448891 is a wasteful number, since it uses less digits than its factorization.

347448891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38681.

The product of its digits is 774144, while the sum is 48.

The square root of 347448891 is about 18639.9809817500. The cubic root of 347448891 is about 703.0134650304.

The spelling of 347448891 in words is "three hundred forty-seven million, four hundred forty-eight thousand, eight hundred ninety-one".