668073 has 16 divisors (see below), whose sum is σ = 1054080. Its totient is φ = 368256.

The previous prime is 668069. The next prime is 668089. The reversal of 668073 is 370866.

It is not a de Polignac number, because 668073 - 2² = 668069 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 668073.

It is not an unprimeable number, because it can be changed into a prime (668033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61 + ... + 1157.

It is an arithmetic number, because the mean of its divisors is an integer number (65880).

2⁶⁶⁸⁰⁷³ is an apocalyptic number.

It is an amenable number.

668073 is a deficient number, since it is larger than the sum of its proper divisors (386007).

668073 is a wasteful number, since it uses less digits than its factorization.

668073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 668073 is about 817.3573269996. The cubic root of 668073 is about 87.4194305969.

The spelling of 668073 in words is "six hundred sixty-eight thousand, seventy-three".