667045313 has 4 divisors (see below), whose sum is σ = 727685808. Its totient is φ = 606404820.

The previous prime is 667045307. The next prime is 667045363. The reversal of 667045313 is 313540766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 667045313 - 2⁴ = 667045297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667045363) 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, 30320231 + ... + 30320252.

It is an arithmetic number, because the mean of its divisors is an integer number (181921452).

Almost surely, 2^667045313 is an apocalyptic number.

It is an amenable number.

667045313 is a deficient number, since it is larger than the sum of its proper divisors (60640495).

667045313 is a wasteful number, since it uses less digits than its factorization.

667045313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60640494.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 667045313 is about 25827.2203885745. The cubic root of 667045313 is about 873.7458224541.

The spelling of 667045313 in words is "six hundred sixty-seven million, forty-five thousand, three hundred thirteen".