667673603 has 4 divisors (see below), whose sum is σ = 667907760. Its totient is φ = 667439448.

The previous prime is 667673581. The next prime is 667673653. The reversal of 667673603 is 306376766.

667673603 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667673603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667673653) 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, 112748 + ... + 118521.

It is an arithmetic number, because the mean of its divisors is an integer number (166976940).

Almost surely, 2^667673603 is an apocalyptic number.

667673603 is a deficient number, since it is larger than the sum of its proper divisors (234157).

667673603 is a wasteful number, since it uses less digits than its factorization.

667673603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234156.

The product of its (nonzero) digits is 571536, while the sum is 44.

The square root of 667673603 is about 25839.3808555855. The cubic root of 667673603 is about 874.0200634416.

The spelling of 667673603 in words is "six hundred sixty-seven million, six hundred seventy-three thousand, six hundred three".