168897996 has 36 divisors (see below), whose sum is σ = 427753872. Its totient is φ = 56191584.

The previous prime is 168897991. The next prime is 168898003. The reversal of 168897996 is 699798861.

168897996 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (168897991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15841 + ... + 24263.

It is an arithmetic number, because the mean of its divisors is an integer number (11882052).

Almost surely, 2^168897996 is an apocalyptic number.

It is an amenable number.

168897996 is an abundant number, since it is smaller than the sum of its proper divisors (258855876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168897996 is a wasteful number, since it uses less digits than its factorization.

168897996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8990 (or 8985 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The square root of 168897996 is about 12996.0761770621. The cubic root of 168897996 is about 552.7662248299.

The spelling of 168897996 in words is "one hundred sixty-eight million, eight hundred ninety-seven thousand, nine hundred ninety-six".