667071003 has 4 divisors (see below), whose sum is σ = 889428008. Its totient is φ = 444714000.

The previous prime is 667070983. The next prime is 667071101. The reversal of 667071003 is 300170766.

667071003 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 not a de Polignac number, because 667071003 - 2²¹ = 664973851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667071203) 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, 111178498 + ... + 111178503.

It is an arithmetic number, because the mean of its divisors is an integer number (222357002).

Almost surely, 2^667071003 is an apocalyptic number.

667071003 is a deficient number, since it is larger than the sum of its proper divisors (222357005).

667071003 is a wasteful number, since it uses less digits than its factorization.

667071003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222357004.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 667071003 is about 25827.7177272790. The cubic root of 667071003 is about 873.7570392044.

The spelling of 667071003 in words is "six hundred sixty-seven million, seventy-one thousand, three".