97166899 has 2 divisors, whose sum is σ = 97166900. Its totient is φ = 97166898.

The previous prime is 97166887. The next prime is 97166933. The reversal of 97166899 is 99866179.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97166899 - 2⁹ = 97166387 is a prime.

It is a super-2 number, since 2×97166899² = 18882812522552402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97166809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48583449 + 48583450.

It is an arithmetic number, because the mean of its divisors is an integer number (48583450).

Almost surely, 2^97166899 is an apocalyptic number.

97166899 is a deficient number, since it is larger than the sum of its proper divisors (1).

97166899 is an equidigital number, since it uses as much as digits as its factorization.

97166899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 55.

The square root of 97166899 is about 9857.3271732250. The cubic root of 97166899 is about 459.7334609002.

The spelling of 97166899 in words is "ninety-seven million, one hundred sixty-six thousand, eight hundred ninety-nine".