347479289 has 16 divisors (see below), whose sum is σ = 360884160. Its totient is φ = 334401600.

The previous prime is 347479283. The next prime is 347479291. The reversal of 347479289 is 982974743.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347479289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

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 347479289.

It is not an unprimeable number, because it can be changed into a prime (347479283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743834 + ... + 744300.

It is an arithmetic number, because the mean of its divisors is an integer number (22555260).

Almost surely, 2^347479289 is an apocalyptic number.

It is an amenable number.

347479289 is a deficient number, since it is larger than the sum of its proper divisors (13404871).

347479289 is a wasteful number, since it uses less digits than its factorization.

347479289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760.

The product of its digits is 3048192, while the sum is 53.

The square root of 347479289 is about 18640.7963617438. The cubic root of 347479289 is about 703.0339664439.

The spelling of 347479289 in words is "three hundred forty-seven million, four hundred seventy-nine thousand, two hundred eighty-nine".