168620673 has 16 divisors (see below), whose sum is σ = 247755200. Its totient is φ = 101352384.

The previous prime is 168620663. The next prime is 168620677. The reversal of 168620673 is 376026861.

It is not a de Polignac number, because 168620673 - 2⁴ = 168620657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168620677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48598 + ... + 51951.

It is an arithmetic number, because the mean of its divisors is an integer number (15484700).

Almost surely, 2^168620673 is an apocalyptic number.

168620673 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

168620673 is a deficient number, since it is larger than the sum of its proper divisors (79134527).

168620673 is a wasteful number, since it uses less digits than its factorization.

168620673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100608.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 168620673 is about 12985.4023041260. The cubic root of 168620673 is about 552.4635199053.

The spelling of 168620673 in words is "one hundred sixty-eight million, six hundred twenty thousand, six hundred seventy-three".