347471999 has 8 divisors (see below), whose sum is σ = 397238400. Its totient is φ = 297737496.

The previous prime is 347471977. The next prime is 347472011. The reversal of 347471999 is 999174743.

It is a happy number.

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

It is not a de Polignac number, because 347471999 - 2⁸ = 347471743 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 347471999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347471099) 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, 23852 + ... + 35550.

It is an arithmetic number, because the mean of its divisors is an integer number (49654800).

Almost surely, 2^347471999 is an apocalyptic number.

347471999 is a deficient number, since it is larger than the sum of its proper divisors (49766401).

347471999 is a wasteful number, since it uses less digits than its factorization.

347471999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15949.

The product of its digits is 1714608, while the sum is 53.

The square root of 347471999 is about 18640.6008218619. The cubic root of 347471999 is about 703.0290499365.

The spelling of 347471999 in words is "three hundred forty-seven million, four hundred seventy-one thousand, nine hundred ninety-nine".