647084299 has 2 divisors, whose sum is σ = 647084300. Its totient is φ = 647084298.

The previous prime is 647084287. The next prime is 647084353. The reversal of 647084299 is 992480746.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 647084299 - 2⁵ = 647084267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (647087299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323542149 + 323542150.

It is an arithmetic number, because the mean of its divisors is an integer number (323542150).

Almost surely, 2^647084299 is an apocalyptic number.

647084299 is a deficient number, since it is larger than the sum of its proper divisors (1).

647084299 is an equidigital number, since it uses as much as digits as its factorization.

647084299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 647084299 is about 25437.8516978144. The cubic root of 647084299 is about 864.9419360270.

The spelling of 647084299 in words is "six hundred forty-seven million, eighty-four thousand, two hundred ninety-nine".