2347397647 has 4 divisors (see below), whose sum is σ = 2682740176. Its totient is φ = 2012055120.

The previous prime is 2347397627. The next prime is 2347397653. The reversal of 2347397647 is 7467937432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2347397647 is a prime.

It is a super-2 number, since 2×2347397647² = 11020551426282273218, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2347397594 and 2347397603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2347397627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167671254 + ... + 167671267.

It is an arithmetic number, because the mean of its divisors is an integer number (670685044).

Almost surely, 2^2347397647 is an apocalyptic number.

2347397647 is a deficient number, since it is larger than the sum of its proper divisors (335342529).

2347397647 is an equidigital number, since it uses as much as digits as its factorization.

2347397647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335342528.

The product of its digits is 5334336, while the sum is 52.

The square root of 2347397647 is about 48449.9499174148. The cubic root of 2347397647 is about 1329.0119571131.

The spelling of 2347397647 in words is "two billion, three hundred forty-seven million, three hundred ninety-seven thousand, six hundred forty-seven".