97284287 has 2 divisors, whose sum is σ = 97284288. Its totient is φ = 97284286.

The previous prime is 97284283. The next prime is 97284323. The reversal of 97284287 is 78248279.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97284287 - 2² = 97284283 is a prime.

It is a super-3 number, since 3×97284287³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97284283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48642143 + 48642144.

It is an arithmetic number, because the mean of its divisors is an integer number (48642144).

Almost surely, 2^97284287 is an apocalyptic number.

97284287 is a deficient number, since it is larger than the sum of its proper divisors (1).

97284287 is an equidigital number, since it uses as much as digits as its factorization.

97284287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 47.

The square root of 97284287 is about 9863.2797283662. The cubic root of 97284287 is about 459.9185221160.

The spelling of 97284287 in words is "ninety-seven million, two hundred eighty-four thousand, two hundred eighty-seven".