97497474727 has 2 divisors, whose sum is σ = 97497474728. Its totient is φ = 97497474726.

The previous prime is 97497474721. The next prime is 97497474731. The reversal of 97497474727 is 72747479479.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97497474727 - 2¹¹ = 97497472679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97497474721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48748737363 + 48748737364.

It is an arithmetic number, because the mean of its divisors is an integer number (48748737364).

Almost surely, 2^97497474727 is an apocalyptic number.

97497474727 is a deficient number, since it is larger than the sum of its proper divisors (1).

97497474727 is an equidigital number, since it uses as much as digits as its factorization.

97497474727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174254976, while the sum is 67.

The spelling of 97497474727 in words is "ninety-seven billion, four hundred ninety-seven million, four hundred seventy-four thousand, seven hundred twenty-seven".