667467 has 16 divisors (see below), whose sum is σ = 1008000. Its totient is φ = 436392.

The previous prime is 667463. The next prime is 667477. The reversal of 667467 is 764766.

It is not a de Polignac number, because 667467 - 2² = 667463 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (667463) 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, 1384 + ... + 1802.

It is an arithmetic number, because the mean of its divisors is an integer number (63000).

2⁶⁶⁷⁴⁶⁷ is an apocalyptic number.

667467 is a deficient number, since it is larger than the sum of its proper divisors (340533).

667467 is a wasteful number, since it uses less digits than its factorization.

667467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 481 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 667467 is about 816.9865359968. The cubic root of 667467 is about 87.3929902723.

The spelling of 667467 in words is "six hundred sixty-seven thousand, four hundred sixty-seven".