97193489 has 2 divisors, whose sum is σ = 97193490. Its totient is φ = 97193488.

The previous prime is 97193479. The next prime is 97193497. The reversal of 97193489 is 98439179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54878464 + 42315025 = 7408^2 + 6505^2 .

It is a cyclic number.

It is not a de Polignac number, because 97193489 - 2²⁰ = 96144913 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (97193479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48596744 + 48596745.

It is an arithmetic number, because the mean of its divisors is an integer number (48596745).

Almost surely, 2^97193489 is an apocalyptic number.

It is an amenable number.

97193489 is a deficient number, since it is larger than the sum of its proper divisors (1).

97193489 is an equidigital number, since it uses as much as digits as its factorization.

97193489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 50.

The square root of 97193489 is about 9858.6758238619. The cubic root of 97193489 is about 459.7753928680.

The spelling of 97193489 in words is "ninety-seven million, one hundred ninety-three thousand, four hundred eighty-nine".