6398347073 has 2 divisors, whose sum is σ = 6398347074. Its totient is φ = 6398347072.

The previous prime is 6398347057. The next prime is 6398347091. The reversal of 6398347073 is 3707438936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6390883249 + 7463824 = 79943^2 + 2732^2 .

It is a cyclic number.

It is not a de Polignac number, because 6398347073 - 2⁴ = 6398347057 is a prime.

It is not a weakly prime, because it can be changed into another prime (6398347013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3199173536 + 3199173537.

It is an arithmetic number, because the mean of its divisors is an integer number (3199173537).

Almost surely, 2^6398347073 is an apocalyptic number.

It is an amenable number.

6398347073 is a deficient number, since it is larger than the sum of its proper divisors (1).

6398347073 is an equidigital number, since it uses as much as digits as its factorization.

6398347073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 50.

The square root of 6398347073 is about 79989.6685391307. The cubic root of 6398347073 is about 1856.4756820263.

The spelling of 6398347073 in words is "six billion, three hundred ninety-eight million, three hundred forty-seven thousand, seventy-three".