97042219 has 2 divisors, whose sum is σ = 97042220. Its totient is φ = 97042218.

The previous prime is 97042181. The next prime is 97042223. The reversal of 97042219 is 91224079.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (91224079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97042219 - 2²³ = 88653611 is a prime.

It is a super-2 number, since 2×97042219² = 18834384536887922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97042229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48521109 + 48521110.

It is an arithmetic number, because the mean of its divisors is an integer number (48521110).

Almost surely, 2^97042219 is an apocalyptic number.

97042219 is a deficient number, since it is larger than the sum of its proper divisors (1).

97042219 is an equidigital number, since it uses as much as digits as its factorization.

97042219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 97042219 is about 9851.0009136128. Note that the first 3 decimals coincide. The cubic root of 97042219 is about 459.5367406091.

The spelling of 97042219 in words is "ninety-seven million, forty-two thousand, two hundred nineteen".