667373 has 4 divisors (see below), whose sum is σ = 762720. Its totient is φ = 572028.

The previous prime is 667367. The next prime is 667379. The reversal of 667373 is 373766.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 373766 = 2 ⋅186883.

It is an interprime number because it is at equal distance from previous prime (667367) and next prime (667379).

It is a cyclic number.

It is not a de Polignac number, because 667373 - 2⁶ = 667309 is a prime.

It is a super-2 number, since 2×667373² = 890773442258, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667379) 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, 47663 + ... + 47676.

It is an arithmetic number, because the mean of its divisors is an integer number (190680).

2⁶⁶⁷³⁷³ is an apocalyptic number.

It is an amenable number.

667373 is a deficient number, since it is larger than the sum of its proper divisors (95347).

667373 is an equidigital number, since it uses as much as digits as its factorization.

667373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95346.

The product of its digits is 15876, while the sum is 32.

The square root of 667373 is about 816.9290054833. The cubic root of 667373 is about 87.3888875342.

The spelling of 667373 in words is "six hundred sixty-seven thousand, three hundred seventy-three".