97211843 has 2 divisors, whose sum is σ = 97211844. Its totient is φ = 97211842.

The previous prime is 97211813. The next prime is 97211893. The reversal of 97211843 is 34811279.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97211843 - 2²² = 93017539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97211813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48605921 + 48605922.

It is an arithmetic number, because the mean of its divisors is an integer number (48605922).

Almost surely, 2^97211843 is an apocalyptic number.

97211843 is a deficient number, since it is larger than the sum of its proper divisors (1).

97211843 is an equidigital number, since it uses as much as digits as its factorization.

97211843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 97211843 is about 9859.6066351554. The cubic root of 97211843 is about 459.8043323457.

The spelling of 97211843 in words is "ninety-seven million, two hundred eleven thousand, eight hundred forty-three".