667433 has 4 divisors (see below), whose sum is σ = 718788. Its totient is φ = 616080.

The previous prime is 667427. The next prime is 667441. The reversal of 667433 is 334766.

667433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 316969 + 350464 = 563^2 + 592^2 .

It is a cyclic number.

It is not a de Polignac number, because 667433 - 2⁴ = 667417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667396 and 667405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667423) 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, 25658 + ... + 25683.

It is an arithmetic number, because the mean of its divisors is an integer number (179697).

2⁶⁶⁷⁴³³ is an apocalyptic number.

It is an amenable number.

667433 is a deficient number, since it is larger than the sum of its proper divisors (51355).

667433 is a wasteful number, since it uses less digits than its factorization.

667433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51354.

The product of its digits is 9072, while the sum is 29.

The square root of 667433 is about 816.9657275553. The cubic root of 667433 is about 87.3915063477.

The spelling of 667433 in words is "six hundred sixty-seven thousand, four hundred thirty-three".