667464 has 64 divisors (see below), whose sum is σ = 1987200. Its totient is φ = 182784.

The previous prime is 667463. The next prime is 667477. The reversal of 667464 is 464766.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667463) 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, 4804 + ... + 4940.

It is an arithmetic number, because the mean of its divisors is an integer number (31050).

2⁶⁶⁷⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 667464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (993600).

667464 is an abundant number, since it is smaller than the sum of its proper divisors (1319736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667464 is a wasteful number, since it uses less digits than its factorization.

667464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 178 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 667464 is about 816.9846999791. The cubic root of 667464 is about 87.3928593398.

The spelling of 667464 in words is "six hundred sixty-seven thousand, four hundred sixty-four".