97022881 has 2 divisors, whose sum is σ = 97022882. Its totient is φ = 97022880.

The previous prime is 97022869. The next prime is 97022903. The reversal of 97022881 is 18822079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94187025 + 2835856 = 9705^2 + 1684^2 .

It is an emirp because it is prime and its reverse (18822079) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97022881 is a prime.

It is a super-2 number, since 2×97022881² = 18826878875080322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97022881.

It is not a weakly prime, because it can be changed into another prime (97020881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48511440 + 48511441.

It is an arithmetic number, because the mean of its divisors is an integer number (48511441).

Almost surely, 2^97022881 is an apocalyptic number.

It is an amenable number.

97022881 is a deficient number, since it is larger than the sum of its proper divisors (1).

97022881 is an equidigital number, since it uses as much as digits as its factorization.

97022881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 97022881 is about 9850.0193400825. The cubic root of 97022881 is about 459.5062139925.

It can be divided in two parts, 97022 and 881, that added together give a triangular number (97903 = T₄₄₂).

The spelling of 97022881 in words is "ninety-seven million, twenty-two thousand, eight hundred eighty-one".