647342330 has 16 divisors (see below), whose sum is σ = 1176754824. Its totient is φ = 256372800.

The previous prime is 647342329. The next prime is 647342347. The reversal of 647342330 is 33243746.

It can be written as a sum of positive squares in 4 ways, for example, as 504945841 + 142396489 = 22471^2 + 11933^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319457 + ... + 321476.

Almost surely, 2^647342330 is an apocalyptic number.

647342330 is a deficient number, since it is larger than the sum of its proper divisors (529412494).

647342330 is a wasteful number, since it uses less digits than its factorization.

647342330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641041.

The product of its (nonzero) digits is 36288, while the sum is 32.

The square root of 647342330 is about 25442.9229845944. The cubic root of 647342330 is about 865.0568886817.

The spelling of 647342330 in words is "six hundred forty-seven million, three hundred forty-two thousand, three hundred thirty".