97889147 has 2 divisors, whose sum is σ = 97889148. Its totient is φ = 97889146.

The previous prime is 97889119. The next prime is 97889167. The reversal of 97889147 is 74198879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97889147 - 2²⁶ = 30780283 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97889107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48944573 + 48944574.

It is an arithmetic number, because the mean of its divisors is an integer number (48944574).

Almost surely, 2^97889147 is an apocalyptic number.

97889147 is a deficient number, since it is larger than the sum of its proper divisors (1).

97889147 is an equidigital number, since it uses as much as digits as its factorization.

97889147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 53.

The square root of 97889147 is about 9893.8944304050. The cubic root of 97889147 is about 460.8697266484.

The spelling of 97889147 in words is "ninety-seven million, eight hundred eighty-nine thousand, one hundred forty-seven".