671313293 has 4 divisors (see below), whose sum is σ = 767215200. Its totient is φ = 575411388.

The previous prime is 671313281. The next prime is 671313319. The reversal of 671313293 is 392313176.

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 671313293 - 2²² = 667118989 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 (671313193) 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, 47950943 + ... + 47950956.

It is an arithmetic number, because the mean of its divisors is an integer number (191803800).

Almost surely, 2^671313293 is an apocalyptic number.

It is an amenable number.

671313293 is a deficient number, since it is larger than the sum of its proper divisors (95901907).

671313293 is an equidigital number, since it uses as much as digits as its factorization.

671313293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95901906.

The product of its digits is 20412, while the sum is 35.

The square root of 671313293 is about 25909.7142593275. The cubic root of 671313293 is about 875.6053685079.

The spelling of 671313293 in words is "six hundred seventy-one million, three hundred thirteen thousand, two hundred ninety-three".