8213671273 has 8 divisors (see below), whose sum is σ = 8407054656. Its totient is φ = 8020395600.

The previous prime is 8213671201. The next prime is 8213671283. The reversal of 8213671273 is 3721763128.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8213671273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8213671283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139308 + ... + 189298.

It is an arithmetic number, because the mean of its divisors is an integer number (1050881832).

Almost surely, 2^8213671273 is an apocalyptic number.

It is an amenable number.

8213671273 is a deficient number, since it is larger than the sum of its proper divisors (193383383).

8213671273 is a wasteful number, since it uses less digits than its factorization.

8213671273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53855.

The product of its digits is 84672, while the sum is 40.

The square root of 8213671273 is about 90629.3069211058. The cubic root of 8213671273 is about 2017.6497248468.

The spelling of 8213671273 in words is "eight billion, two hundred thirteen million, six hundred seventy-one thousand, two hundred seventy-three".