8023391641 has 4 divisors (see below), whose sum is σ = 8023987300. Its totient is φ = 8022795984.

The previous prime is 8023391617. The next prime is 8023391647. The reversal of 8023391641 is 1461933208.

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 7886150416 + 137241225 = 88804^2 + 11715^2 .

It is a cyclic number.

It is not a de Polignac number, because 8023391641 - 2⁵ = 8023391609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8023391641.

It is not an unprimeable number, because it can be changed into a prime (8023391647) 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, 277146 + ... + 304723.

It is an arithmetic number, because the mean of its divisors is an integer number (2005996825).

Almost surely, 2^8023391641 is an apocalyptic number.

It is an amenable number.

8023391641 is a deficient number, since it is larger than the sum of its proper divisors (595659).

8023391641 is a wasteful number, since it uses less digits than its factorization.

8023391641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595658.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 8023391641 is about 89573.3869014676. The cubic root of 8023391641 is about 2001.9474066050.

The spelling of 8023391641 in words is "eight billion, twenty-three million, three hundred ninety-one thousand, six hundred forty-one".