667004441 has 16 divisors (see below), whose sum is σ = 691746048. Its totient is φ = 642729600.

The previous prime is 667004423. The next prime is 667004449. The reversal of 667004441 is 144400766.

667004441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-667004441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 667004398 and 667004407.

It is not an unprimeable number, because it can be changed into a prime (667004449) 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, 1922030 + ... + 1922376.

It is an arithmetic number, because the mean of its divisors is an integer number (43234128).

Almost surely, 2^667004441 is an apocalyptic number.

It is an amenable number.

667004441 is a deficient number, since it is larger than the sum of its proper divisors (24741607).

667004441 is a wasteful number, since it uses less digits than its factorization.

667004441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 667004441 is about 25826.4291182502. The cubic root of 667004441 is about 873.7279763558.

The spelling of 667004441 in words is "six hundred sixty-seven million, four thousand, four hundred forty-one".