97166887 has 2 divisors, whose sum is σ = 97166888. Its totient is φ = 97166886.

The previous prime is 97166863. The next prime is 97166899. The reversal of 97166887 is 78866179.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97166887 - 2⁷ = 97166759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97166827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48583443 + 48583444.

It is an arithmetic number, because the mean of its divisors is an integer number (48583444).

Almost surely, 2^97166887 is an apocalyptic number.

97166887 is a deficient number, since it is larger than the sum of its proper divisors (1).

97166887 is an equidigital number, since it uses as much as digits as its factorization.

97166887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 52.

The square root of 97166887 is about 9857.3265645407. The cubic root of 97166887 is about 459.7334419747.

The spelling of 97166887 in words is "ninety-seven million, one hundred sixty-six thousand, eight hundred eighty-seven".