97995481 has 2 divisors, whose sum is σ = 97995482. Its totient is φ = 97995480.

The previous prime is 97995449. The next prime is 97995493. The reversal of 97995481 is 18459979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61089856 + 36905625 = 7816^2 + 6075^2 .

It is a cyclic number.

It is not a de Polignac number, because 97995481 - 2⁵ = 97995449 is a prime.

It is a super-2 number, since 2×97995481² = 19206228592842722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97995421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48997740 + 48997741.

It is an arithmetic number, because the mean of its divisors is an integer number (48997741).

Almost surely, 2^97995481 is an apocalyptic number.

It is an amenable number.

97995481 is a deficient number, since it is larger than the sum of its proper divisors (1).

97995481 is an equidigital number, since it uses as much as digits as its factorization.

97995481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480, while the sum is 52.

The square root of 97995481 is about 9899.2666900130. The cubic root of 97995481 is about 461.0365425113.

The spelling of 97995481 in words is "ninety-seven million, nine hundred ninety-five thousand, four hundred eighty-one".