6976673521 has 8 divisors (see below), whose sum is σ = 7218383400. Its totient is φ = 6735039360.

The previous prime is 6976673489. The next prime is 6976673569. The reversal of 6976673521 is 1253766796.

It is a happy number.

6976673521 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 574273296 + 6402400225 = 23964^2 + 80015^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6976673521 - 2⁵ = 6976673489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6976673581) 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, 219711 + ... + 249451.

It is an arithmetic number, because the mean of its divisors is an integer number (902297925).

Almost surely, 2^6976673521 is an apocalyptic number.

It is an amenable number.

6976673521 is a deficient number, since it is larger than the sum of its proper divisors (241709879).

6976673521 is a wasteful number, since it uses less digits than its factorization.

6976673521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37859.

The product of its digits is 2857680, while the sum is 52.

The square root of 6976673521 is about 83526.4839497030. The cubic root of 6976673521 is about 1910.8039634197.

The spelling of 6976673521 in words is "six billion, nine hundred seventy-six million, six hundred seventy-three thousand, five hundred twenty-one".