97144471 has 2 divisors, whose sum is σ = 97144472. Its totient is φ = 97144470.

The previous prime is 97144469. The next prime is 97144507. The reversal of 97144471 is 17444179.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97144471 - 2¹ = 97144469 is a prime.

It is a super-3 number, since 3×97144471³ (a number of 25 digits) contains 333 as substring.

Together with 97144469, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 97144471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97114471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48572235 + 48572236.

It is an arithmetic number, because the mean of its divisors is an integer number (48572236).

Almost surely, 2^97144471 is an apocalyptic number.

97144471 is a deficient number, since it is larger than the sum of its proper divisors (1).

97144471 is an equidigital number, since it uses as much as digits as its factorization.

97144471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 37.

The square root of 97144471 is about 9856.1894766690. The cubic root of 97144471 is about 459.6980863863.

The spelling of 97144471 in words is "ninety-seven million, one hundred forty-four thousand, four hundred seventy-one".