97745213 has 2 divisors, whose sum is σ = 97745214. Its totient is φ = 97745212.

The previous prime is 97745209. The next prime is 97745233. The reversal of 97745213 is 31254779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62378404 + 35366809 = 7898^2 + 5947^2 .

It is a cyclic number.

It is not a de Polignac number, because 97745213 - 2² = 97745209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97745233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48872606 + 48872607.

It is an arithmetic number, because the mean of its divisors is an integer number (48872607).

Almost surely, 2^97745213 is an apocalyptic number.

It is an amenable number.

97745213 is a deficient number, since it is larger than the sum of its proper divisors (1).

97745213 is an equidigital number, since it uses as much as digits as its factorization.

97745213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 38.

The square root of 97745213 is about 9886.6178746829. The cubic root of 97745213 is about 460.6437316862.

The spelling of 97745213 in words is "ninety-seven million, seven hundred forty-five thousand, two hundred thirteen".