97213901 has 2 divisors, whose sum is σ = 97213902. Its totient is φ = 97213900.

The previous prime is 97213867. The next prime is 97213943. The reversal of 97213901 is 10931279.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66422500 + 30791401 = 8150^2 + 5549^2 .

It is a cyclic number.

It is not a de Polignac number, because 97213901 - 2¹⁰ = 97212877 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 (97213201) 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, 48606950 + 48606951.

It is an arithmetic number, because the mean of its divisors is an integer number (48606951).

Almost surely, 2^97213901 is an apocalyptic number.

It is an amenable number.

97213901 is a deficient number, since it is larger than the sum of its proper divisors (1).

97213901 is an equidigital number, since it uses as much as digits as its factorization.

97213901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 97213901 is about 9859.7109998214. The cubic root of 97213901 is about 459.8075770486.

The spelling of 97213901 in words is "ninety-seven million, two hundred thirteen thousand, nine hundred one".