97668287 has 4 divisors (see below), whose sum is σ = 98290536. Its totient is φ = 97046040.

The previous prime is 97668269. The next prime is 97668289. The reversal of 97668287 is 78286679.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78286679 = 83 ⋅943213.

It is a cyclic number.

It is not a de Polignac number, because 97668287 - 2⁸ = 97668031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97668289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310889 + ... + 311202.

It is an arithmetic number, because the mean of its divisors is an integer number (24572634).

Almost surely, 2^97668287 is an apocalyptic number.

97668287 is a deficient number, since it is larger than the sum of its proper divisors (622249).

97668287 is a wasteful number, since it uses less digits than its factorization.

97668287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622248.

The product of its digits is 2032128, while the sum is 53.

The square root of 97668287 is about 9882.7266986394. The cubic root of 97668287 is about 460.5228569526.

The spelling of 97668287 in words is "ninety-seven million, six hundred sixty-eight thousand, two hundred eighty-seven".