5647398973 has 2 divisors, whose sum is σ = 5647398974. Its totient is φ = 5647398972.

The previous prime is 5647398959. The next prime is 5647399003. The reversal of 5647398973 is 3798937465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3031383364 + 2616015609 = 55058^2 + 51147^2 .

It is a cyclic number.

It is not a de Polignac number, because 5647398973 - 2⁹ = 5647398461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5647398923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2823699486 + 2823699487.

It is an arithmetic number, because the mean of its divisors is an integer number (2823699487).

Almost surely, 2^5647398973 is an apocalyptic number.

It is an amenable number.

5647398973 is a deficient number, since it is larger than the sum of its proper divisors (1).

5647398973 is an equidigital number, since it uses as much as digits as its factorization.

5647398973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 61.

The square root of 5647398973 is about 75149.1781259117. The cubic root of 5647398973 is about 1780.8041408291.

The spelling of 5647398973 in words is "five billion, six hundred forty-seven million, three hundred ninety-eight thousand, nine hundred seventy-three".