6721970327 has 4 divisors (see below), whose sum is σ = 6722343840. Its totient is φ = 6721596816.

The previous prime is 6721970303. The next prime is 6721970341. The reversal of 6721970327 is 7230791276.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6721970327 - 2⁶ = 6721970263 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 (6721970627) 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, 158318 + ... + 196235.

It is an arithmetic number, because the mean of its divisors is an integer number (1680585960).

Almost surely, 2^6721970327 is an apocalyptic number.

6721970327 is a deficient number, since it is larger than the sum of its proper divisors (373513).

6721970327 is a wasteful number, since it uses less digits than its factorization.

6721970327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373512.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 6721970327 is about 81987.6230110375. The cubic root of 6721970327 is about 1887.2620066404.

The spelling of 6721970327 in words is "six billion, seven hundred twenty-one million, nine hundred seventy thousand, three hundred twenty-seven".