97888319 has 2 divisors, whose sum is σ = 97888320. Its totient is φ = 97888318.

The previous prime is 97888283. The next prime is 97888321. The reversal of 97888319 is 91388879.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97888319 - 2¹² = 97884223 is a prime.

It is a super-2 number, since 2×97888319² = 19164245993291522, which contains 22 as substring.

Together with 97888321, 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 (97888379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48944159 + 48944160.

It is an arithmetic number, because the mean of its divisors is an integer number (48944160).

Almost surely, 2^97888319 is an apocalyptic number.

97888319 is a deficient number, since it is larger than the sum of its proper divisors (1).

97888319 is an equidigital number, since it uses as much as digits as its factorization.

97888319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 53.

The square root of 97888319 is about 9893.8525863285. The cubic root of 97888319 is about 460.8684272152.

The spelling of 97888319 in words is "ninety-seven million, eight hundred eighty-eight thousand, three hundred nineteen".