97997461 has 2 divisors, whose sum is σ = 97997462. Its totient is φ = 97997460.

The previous prime is 97997447. The next prime is 97997509. The reversal of 97997461 is 16479979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97911025 + 86436 = 9895^2 + 294^2 .

It is a cyclic number.

It is not a de Polignac number, because 97997461 - 2¹¹ = 97995413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97997399 and 97997408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97997561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48998730 + 48998731.

It is an arithmetic number, because the mean of its divisors is an integer number (48998731).

Almost surely, 2^97997461 is an apocalyptic number.

It is an amenable number.

97997461 is a deficient number, since it is larger than the sum of its proper divisors (1).

97997461 is an equidigital number, since it uses as much as digits as its factorization.

97997461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 52.

The square root of 97997461 is about 9899.3666969155. The cubic root of 97997461 is about 461.0396475736.

The spelling of 97997461 in words is "ninety-seven million, nine hundred ninety-seven thousand, four hundred sixty-one".