7796673821 has 4 divisors (see below), whose sum is σ = 7798553532. Its totient is φ = 7794794112.

The previous prime is 7796673793. The next prime is 7796673839. The reversal of 7796673821 is 1283766977.

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 5522719225 + 2273954596 = 74315^2 + 47686^2 .

It is a cyclic number.

It is not a de Polignac number, because 7796673821 - 2⁶ = 7796673757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7796676821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933620 + ... + 941933.

It is an arithmetic number, because the mean of its divisors is an integer number (1949638383).

Almost surely, 2^7796673821 is an apocalyptic number.

It is an amenable number.

7796673821 is a deficient number, since it is larger than the sum of its proper divisors (1879711).

7796673821 is a wasteful number, since it uses less digits than its factorization.

7796673821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879710.

The product of its digits is 5334336, while the sum is 56.

The square root of 7796673821 is about 88298.7758748670. The cubic root of 7796673821 is about 1982.9105428919.

The spelling of 7796673821 in words is "seven billion, seven hundred ninety-six million, six hundred seventy-three thousand, eight hundred twenty-one".