361668673 has 4 divisors (see below), whose sum is σ = 371443540. Its totient is φ = 351893808.

The previous prime is 361668653. The next prime is 361668679. The reversal of 361668673 is 376866163.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 236944449 + 124724224 = 15393^2 + 11168^2 .

It is a cyclic number.

It is not a de Polignac number, because 361668673 - 2⁵ = 361668641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (361668679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4887378 + ... + 4887451.

It is an arithmetic number, because the mean of its divisors is an integer number (92860885).

Almost surely, 2^361668673 is an apocalyptic number.

It is an amenable number.

361668673 is a deficient number, since it is larger than the sum of its proper divisors (9774867).

361668673 is an equidigital number, since it uses as much as digits as its factorization.

361668673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9774866.

The product of its digits is 653184, while the sum is 46.

The square root of 361668673 is about 19017.5885169493. The cubic root of 361668673 is about 712.4760951455.

The spelling of 361668673 in words is "three hundred sixty-one million, six hundred sixty-eight thousand, six hundred seventy-three".