168897995 has 16 divisors (see below), whose sum is σ = 234897408. Its totient is φ = 114182880.

The previous prime is 168897991. The next prime is 168898003. The reversal of 168897995 is 599798861.

It is not a de Polignac number, because 168897995 - 2² = 168897991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168897991) 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 in 15 ways as a sum of consecutive naturals, for example, 31499 + ... + 36468.

It is an arithmetic number, because the mean of its divisors is an integer number (14681088).

Almost surely, 2^168897995 is an apocalyptic number.

168897995 is a deficient number, since it is larger than the sum of its proper divisors (65999413).

168897995 is an equidigital number, since it uses as much as digits as its factorization.

168897995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68050.

The product of its digits is 9797760, while the sum is 62.

The square root of 168897995 is about 12996.0761385889. The cubic root of 168897995 is about 552.7662237390.

The spelling of 168897995 in words is "one hundred sixty-eight million, eight hundred ninety-seven thousand, nine hundred ninety-five".