97643269 has 2 divisors, whose sum is σ = 97643270. Its totient is φ = 97643268.

The previous prime is 97643237. The next prime is 97643281. The reversal of 97643269 is 96234679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69923044 + 27720225 = 8362^2 + 5265^2 .

It is an emirp because it is prime and its reverse (96234679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97643269 - 2⁵ = 97643237 is a prime.

It is a super-2 number, since 2×97643269² = 19068415962012722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97643219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48821634 + 48821635.

It is an arithmetic number, because the mean of its divisors is an integer number (48821635).

Almost surely, 2^97643269 is an apocalyptic number.

It is an amenable number.

97643269 is a deficient number, since it is larger than the sum of its proper divisors (1).

97643269 is an equidigital number, since it uses as much as digits as its factorization.

97643269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 46.

The square root of 97643269 is about 9881.4608737777. The cubic root of 97643269 is about 460.4835321964.

The spelling of 97643269 in words is "ninety-seven million, six hundred forty-three thousand, two hundred sixty-nine".