97217903 has 2 divisors, whose sum is σ = 97217904. Its totient is φ = 97217902.

The previous prime is 97217843. The next prime is 97217921. The reversal of 97217903 is 30971279.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97217903 - 2⁸ = 97217647 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97217963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48608951 + 48608952.

It is an arithmetic number, because the mean of its divisors is an integer number (48608952).

Almost surely, 2^97217903 is an apocalyptic number.

97217903 is a deficient number, since it is larger than the sum of its proper divisors (1).

97217903 is an equidigital number, since it uses as much as digits as its factorization.

97217903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 97217903 is about 9859.9139448577. The cubic root of 97217903 is about 459.8138865875.

The spelling of 97217903 in words is "ninety-seven million, two hundred seventeen thousand, nine hundred three".