97447793 has 2 divisors, whose sum is σ = 97447794. Its totient is φ = 97447792.

The previous prime is 97447783. The next prime is 97447811. The reversal of 97447793 is 39774479.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94926049 + 2521744 = 9743^2 + 1588^2 .

It is an emirp because it is prime and its reverse (39774479) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97447793 - 2¹⁴ = 97431409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97447733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48723896 + 48723897.

It is an arithmetic number, because the mean of its divisors is an integer number (48723897).

Almost surely, 2^97447793 is an apocalyptic number.

It is an amenable number.

97447793 is a deficient number, since it is larger than the sum of its proper divisors (1).

97447793 is an equidigital number, since it uses as much as digits as its factorization.

97447793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1333584, while the sum is 50.

The square root of 97447793 is about 9871.5648708804. The cubic root of 97447793 is about 460.1760400570.

The spelling of 97447793 in words is "ninety-seven million, four hundred forty-seven thousand, seven hundred ninety-three".