97980313 has 2 divisors, whose sum is σ = 97980314. Its totient is φ = 97980312.

The previous prime is 97980277. The next prime is 97980341. The reversal of 97980313 is 31308979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97081609 + 898704 = 9853^2 + 948^2 .

It is a cyclic number.

It is not a de Polignac number, because 97980313 - 2⁹ = 97979801 is a prime.

It is not a weakly prime, because it can be changed into another prime (97980413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48990156 + 48990157.

It is an arithmetic number, because the mean of its divisors is an integer number (48990157).

Almost surely, 2^97980313 is an apocalyptic number.

It is an amenable number.

97980313 is a deficient number, since it is larger than the sum of its proper divisors (1).

97980313 is an equidigital number, since it uses as much as digits as its factorization.

97980313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 97980313 is about 9898.5005430116. The cubic root of 97980313 is about 461.0127544651.

It can be divided in two parts, 9 and 7980313, that multiplied together give a palindrome (71822817).

The spelling of 97980313 in words is "ninety-seven million, nine hundred eighty thousand, three hundred thirteen".