168896913 has 4 divisors (see below), whose sum is σ = 225195888. Its totient is φ = 112597940.

The previous prime is 168896879. The next prime is 168896927. The reversal of 168896913 is 319698861.

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 168896913 - 2⁸ = 168896657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (168896713) 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, 28149483 + ... + 28149488.

It is an arithmetic number, because the mean of its divisors is an integer number (56298972).

Almost surely, 2^168896913 is an apocalyptic number.

It is an amenable number.

168896913 is a deficient number, since it is larger than the sum of its proper divisors (56298975).

168896913 is an equidigital number, since it uses as much as digits as its factorization.

168896913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56298974.

The product of its digits is 559872, while the sum is 51.

The square root of 168896913 is about 12996.0345105728. The cubic root of 168896913 is about 552.7650433533.

The spelling of 168896913 in words is "one hundred sixty-eight million, eight hundred ninety-six thousand, nine hundred thirteen".