667175461 has 4 divisors (see below), whose sum is σ = 675620800. Its totient is φ = 658730124.

The previous prime is 667175447. The next prime is 667175471. The reversal of 667175461 is 164571766.

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 not a de Polignac number, because 667175461 - 2⁵ = 667175429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667175471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4222551 + ... + 4222708.

It is an arithmetic number, because the mean of its divisors is an integer number (168905200).

Almost surely, 2^667175461 is an apocalyptic number.

It is an amenable number.

667175461 is a deficient number, since it is larger than the sum of its proper divisors (8445339).

667175461 is an equidigital number, since it uses as much as digits as its factorization.

667175461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8445338.

The product of its digits is 211680, while the sum is 43.

The square root of 667175461 is about 25829.7398554457. The cubic root of 667175461 is about 873.8026446190.

The spelling of 667175461 in words is "six hundred sixty-seven million, one hundred seventy-five thousand, four hundred sixty-one".