97075681 has 2 divisors, whose sum is σ = 97075682. Its totient is φ = 97075680.

The previous prime is 97075669. The next prime is 97075687. The reversal of 97075681 is 18657079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96845281 + 230400 = 9841^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 97075681 - 2¹¹ = 97073633 is a prime.

It is a super-2 number, since 2×97075681² = 18847375683227522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97075687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48537840 + 48537841.

It is an arithmetic number, because the mean of its divisors is an integer number (48537841).

Almost surely, 2^97075681 is an apocalyptic number.

It is an amenable number.

97075681 is a deficient number, since it is larger than the sum of its proper divisors (1).

97075681 is an equidigital number, since it uses as much as digits as its factorization.

97075681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 97075681 is about 9852.6991733230. The cubic root of 97075681 is about 459.5895535376.

The spelling of 97075681 in words is "ninety-seven million, seventy-five thousand, six hundred eighty-one".