7963867220 has 24 divisors (see below), whose sum is σ = 16728823944. Its totient is φ = 3184651136.

The previous prime is 7963867211. The next prime is 7963867229. The reversal of 7963867220 is 227683697.

It is an interprime number because it is at equal distance from previous prime (7963867211) and next prime (7963867229).

It can be written as a sum of positive squares in 4 ways, for example, as 133033156 + 7830834064 = 11534^2 + 88492^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7963867229) 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 7 ways as a sum of consecutive naturals, for example, 19394 + ... + 127686.

It is an arithmetic number, because the mean of its divisors is an integer number (697034331).

Almost surely, 2^7963867220 is an apocalyptic number.

It is an amenable number.

7963867220 is an abundant number, since it is smaller than the sum of its proper divisors (8764956724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7963867220 is a wasteful number, since it uses less digits than its factorization.

7963867220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111979 (or 111977 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 7963867220 is about 89240.5021276774. The cubic root of 7963867220 is about 1996.9843903345.

The spelling of 7963867220 in words is "seven billion, nine hundred sixty-three million, eight hundred sixty-seven thousand, two hundred twenty".