97712843 has 2 divisors, whose sum is σ = 97712844. Its totient is φ = 97712842.

The previous prime is 97712777. The next prime is 97712851. The reversal of 97712843 is 34821779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97712843 - 2¹⁰ = 97711819 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97712843.

It is not a weakly prime, because it can be changed into another prime (97715843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48856421 + 48856422.

It is an arithmetic number, because the mean of its divisors is an integer number (48856422).

Almost surely, 2^97712843 is an apocalyptic number.

97712843 is a deficient number, since it is larger than the sum of its proper divisors (1).

97712843 is an equidigital number, since it uses as much as digits as its factorization.

97712843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 41.

The square root of 97712843 is about 9884.9806777758. The cubic root of 97712843 is about 460.5928760536.

The spelling of 97712843 in words is "ninety-seven million, seven hundred twelve thousand, eight hundred forty-three".