647342343 has 24 divisors (see below), whose sum is σ = 963217008. Its totient is φ = 418632192.

The previous prime is 647342329. The next prime is 647342347. The reversal of 647342343 is 343243746.

647342343 is a `hidden beast` number, since 647 + 3 + 4 + 2 + 3 + 4 + 3 = 666.

It is not a de Polignac number, because 647342343 - 2¹³ = 647334151 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 647342298 and 647342307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (647342347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114796 + ... + 120302.

It is an arithmetic number, because the mean of its divisors is an integer number (40134042).

Almost surely, 2^647342343 is an apocalyptic number.

647342343 is a deficient number, since it is larger than the sum of its proper divisors (315874665).

647342343 is a wasteful number, since it uses less digits than its factorization.

647342343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5903 (or 5900 counting only the distinct ones).

The product of its digits is 145152, while the sum is 36.

The square root of 647342343 is about 25442.9232400682. The cubic root of 647342343 is about 865.0568944724.

The spelling of 647342343 in words is "six hundred forty-seven million, three hundred forty-two thousand, three hundred forty-three".