7972964822 has 4 divisors (see below), whose sum is σ = 11959447236. Its totient is φ = 3986482410.

The previous prime is 7972964821. The next prime is 7972964849. The reversal of 7972964822 is 2284692797.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2284692797 = 37907 ⋅60271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7972964821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993241204 + ... + 1993241207.

It is an arithmetic number, because the mean of its divisors is an integer number (2989861809).

Almost surely, 2^7972964822 is an apocalyptic number.

7972964822 is a deficient number, since it is larger than the sum of its proper divisors (3986482414).

7972964822 is a wasteful number, since it uses less digits than its factorization.

7972964822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3986482413.

The product of its digits is 6096384, while the sum is 56.

The square root of 7972964822 is about 89291.4599611855. The cubic root of 7972964822 is about 1997.7445258744.

The spelling of 7972964822 in words is "seven billion, nine hundred seventy-two million, nine hundred sixty-four thousand, eight hundred twenty-two".