7821960 has 32 divisors (see below), whose sum is σ = 23466240. Its totient is φ = 2085824.

The previous prime is 7821959. The next prime is 7821971. The reversal of 7821960 is 691287.

It is a super-2 number, since 2×7821960² = 122366116483200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32472 + ... + 32711.

It is an arithmetic number, because the mean of its divisors is an integer number (733320).

Almost surely, 2^7821960 is an apocalyptic number.

It is an amenable number.

7821960 is an abundant number, since it is smaller than the sum of its proper divisors (15644280).

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

7821960 is a wasteful number, since it uses less digits than its factorization.

7821960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65197 (or 65193 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 7821960 is about 2796.7767161502. The cubic root of 7821960 is about 198.5051888658.

The spelling of 7821960 in words is "seven million, eight hundred twenty-one thousand, nine hundred sixty".