168534397 has 4 divisors (see below), whose sum is σ = 168615616. Its totient is φ = 168453180.

The previous prime is 168534343. The next prime is 168534403. The reversal of 168534397 is 793435861.

168534397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168534397 - 2⁷ = 168534269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168534497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37413 + ... + 41674.

It is an arithmetic number, because the mean of its divisors is an integer number (42153904).

Almost surely, 2^168534397 is an apocalyptic number.

It is an amenable number.

168534397 is a deficient number, since it is larger than the sum of its proper divisors (81219).

168534397 is an equidigital number, since it uses as much as digits as its factorization.

168534397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81218.

The product of its digits is 544320, while the sum is 46.

The square root of 168534397 is about 12982.0798410732. The cubic root of 168534397 is about 552.3692798310.

The spelling of 168534397 in words is "one hundred sixty-eight million, five hundred thirty-four thousand, three hundred ninety-seven".