667476 has 18 divisors (see below), whose sum is σ = 1687322. Its totient is φ = 222480.

The previous prime is 667463. The next prime is 667477. The reversal of 667476 is 674766.

667476 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 562500 + 104976 = 750^2 + 324^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 18541 = 667476 / (6 + 6 + 7 + 4 + 7 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 667476.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9235 + ... + 9306.

2⁶⁶⁷⁴⁷⁶ is an apocalyptic number.

It is an amenable number.

667476 is an abundant number, since it is smaller than the sum of its proper divisors (1019846).

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

667476 is a wasteful number, since it uses less digits than its factorization.

667476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18551 (or 18546 counting only the distinct ones).

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

The square root of 667476 is about 816.9920440249. The cubic root of 667476 is about 87.3933830674.

The spelling of 667476 in words is "six hundred sixty-seven thousand, four hundred seventy-six".