7972204867 has 4 divisors (see below), whose sum is σ = 8696950776. Its totient is φ = 7247458960.

The previous prime is 7972204847. The next prime is 7972204879. The reversal of 7972204867 is 7684022797.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7972204867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7972204837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362372938 + ... + 362372959.

It is an arithmetic number, because the mean of its divisors is an integer number (2174237694).

Almost surely, 2^7972204867 is an apocalyptic number.

7972204867 is a deficient number, since it is larger than the sum of its proper divisors (724745909).

7972204867 is a wasteful number, since it uses less digits than its factorization.

7972204867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724745908.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The square root of 7972204867 is about 89287.2043856229. The cubic root of 7972204867 is about 1997.6810511941.

The spelling of 7972204867 in words is "seven billion, nine hundred seventy-two million, two hundred four thousand, eight hundred sixty-seven".