97166387 has 2 divisors, whose sum is σ = 97166388. Its totient is φ = 97166386.

The previous prime is 97166383. The next prime is 97166401. The reversal of 97166387 is 78366179.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97166387 - 2² = 97166383 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97166383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48583193 + 48583194.

It is an arithmetic number, because the mean of its divisors is an integer number (48583194).

Almost surely, 2^97166387 is an apocalyptic number.

97166387 is a deficient number, since it is larger than the sum of its proper divisors (1).

97166387 is an equidigital number, since it uses as much as digits as its factorization.

97166387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The square root of 97166387 is about 9857.3012026619. The cubic root of 97166387 is about 459.7326534101.

The spelling of 97166387 in words is "ninety-seven million, one hundred sixty-six thousand, three hundred eighty-seven".