97733861 has 2 divisors, whose sum is σ = 97733862. Its totient is φ = 97733860.

The previous prime is 97733851. The next prime is 97733863. The reversal of 97733861 is 16833779.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60450625 + 37283236 = 7775^2 + 6106^2 .

It is a cyclic number.

It is not a de Polignac number, because 97733861 - 2²² = 93539557 is a prime.

Together with 97733863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97733863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48866930 + 48866931.

It is an arithmetic number, because the mean of its divisors is an integer number (48866931).

Almost surely, 2^97733861 is an apocalyptic number.

It is an amenable number.

97733861 is a deficient number, since it is larger than the sum of its proper divisors (1).

97733861 is an equidigital number, since it uses as much as digits as its factorization.

97733861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 44.

The square root of 97733861 is about 9886.0437486388. The cubic root of 97733861 is about 460.6258981441.

The spelling of 97733861 in words is "ninety-seven million, seven hundred thirty-three thousand, eight hundred sixty-one".