97017853 has 2 divisors, whose sum is σ = 97017854. Its totient is φ = 97017852.

The previous prime is 97017839. The next prime is 97017871. The reversal of 97017853 is 35871079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70257924 + 26759929 = 8382^2 + 5173^2 .

It is an emirp because it is prime and its reverse (35871079) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97017853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97017883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48508926 + 48508927.

It is an arithmetic number, because the mean of its divisors is an integer number (48508927).

Almost surely, 2^97017853 is an apocalyptic number.

It is an amenable number.

97017853 is a deficient number, since it is larger than the sum of its proper divisors (1).

97017853 is an equidigital number, since it uses as much as digits as its factorization.

97017853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 97017853 is about 9849.7641088505. The cubic root of 97017853 is about 459.4982762183.

The spelling of 97017853 in words is "ninety-seven million, seventeen thousand, eight hundred fifty-three".