667423303 has 4 divisors (see below), whose sum is σ = 667789648. Its totient is φ = 667056960.

The previous prime is 667423291. The next prime is 667423319. The reversal of 667423303 is 303324766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 667423303 - 2²⁵ = 633868871 is a prime.

It is a super-3 number, since 3×667423303³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667433303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180426 + ... + 184087.

It is an arithmetic number, because the mean of its divisors is an integer number (166947412).

Almost surely, 2^667423303 is an apocalyptic number.

667423303 is a deficient number, since it is larger than the sum of its proper divisors (366345).

667423303 is a wasteful number, since it uses less digits than its factorization.

667423303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366344.

The product of its (nonzero) digits is 54432, while the sum is 34.

The square root of 667423303 is about 25834.5370192694. The cubic root of 667423303 is about 873.9108311440.

The spelling of 667423303 in words is "six hundred sixty-seven million, four hundred twenty-three thousand, three hundred three".