647342342 has 8 divisors (see below), whose sum is σ = 985506456. Its totient is φ = 318840192.

The previous prime is 647342329. The next prime is 647342347. The reversal of 647342342 is 243243746.

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

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2415323 + ... + 2415590.

It is an arithmetic number, because the mean of its divisors is an integer number (123188307).

Almost surely, 2^647342342 is an apocalyptic number.

647342342 is a deficient number, since it is larger than the sum of its proper divisors (338164114).

647342342 is a wasteful number, since it uses less digits than its factorization.

647342342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830982.

The product of its digits is 96768, while the sum is 35.

The square root of 647342342 is about 25442.9232204163. The cubic root of 647342342 is about 865.0568940270.

It can be divided in two parts, 64734 and 2342, that added together give a palindrome (67076).

The spelling of 647342342 in words is "six hundred forty-seven million, three hundred forty-two thousand, three hundred forty-two".