97727893 has 2 divisors, whose sum is σ = 97727894. Its totient is φ = 97727892.

The previous prime is 97727867. The next prime is 97727909. The reversal of 97727893 is 39872779.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68923204 + 28804689 = 8302^2 + 5367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97727893 is a prime.

It is a super-3 number, since 3×97727893³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97727893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97727843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48863946 + 48863947.

It is an arithmetic number, because the mean of its divisors is an integer number (48863947).

Almost surely, 2^97727893 is an apocalyptic number.

It is an amenable number.

97727893 is a deficient number, since it is larger than the sum of its proper divisors (1).

97727893 is an equidigital number, since it uses as much as digits as its factorization.

97727893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 52.

The square root of 97727893 is about 9885.7419043793. The cubic root of 97727893 is about 460.6165220989.

The spelling of 97727893 in words is "ninety-seven million, seven hundred twenty-seven thousand, eight hundred ninety-three".