97886869 has 2 divisors, whose sum is σ = 97886870. Its totient is φ = 97886868.

The previous prime is 97886863. The next prime is 97886881. The reversal of 97886869 is 96868879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60248644 + 37638225 = 7762^2 + 6135^2 .

It is an emirp because it is prime and its reverse (96868879) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97886869 - 2⁵ = 97886837 is a prime.

It is a super-2 number, since 2×97886869² = 19163678245246322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97886863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48943434 + 48943435.

It is an arithmetic number, because the mean of its divisors is an integer number (48943435).

Almost surely, 2^97886869 is an apocalyptic number.

It is an amenable number.

97886869 is a deficient number, since it is larger than the sum of its proper divisors (1).

97886869 is an equidigital number, since it uses as much as digits as its factorization.

97886869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 61.

The square root of 97886869 is about 9893.7793082320. The cubic root of 97886869 is about 460.8661516202.

The spelling of 97886869 in words is "ninety-seven million, eight hundred eighty-six thousand, eight hundred sixty-nine".