349122847 has 4 divisors (see below), whose sum is σ = 349253416. Its totient is φ = 348992280.

The previous prime is 349122841. The next prime is 349122857. The reversal of 349122847 is 748221943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 748221943 = 7 ⋅106888849.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349122847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349122841) 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, 61188 + ... + 66649.

It is an arithmetic number, because the mean of its divisors is an integer number (87313354).

Almost surely, 2^349122847 is an apocalyptic number.

349122847 is a deficient number, since it is larger than the sum of its proper divisors (130569).

349122847 is a wasteful number, since it uses less digits than its factorization.

349122847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130568.

The product of its digits is 96768, while the sum is 40.

The square root of 349122847 is about 18684.8293275588. The cubic root of 349122847 is about 704.1406607873.

The spelling of 349122847 in words is "three hundred forty-nine million, one hundred twenty-two thousand, eight hundred forty-seven".