7798220 has 12 divisors (see below), whose sum is σ = 16376304. Its totient is φ = 3119280.

The previous prime is 7798201. The next prime is 7798249. The reversal of 7798220 is 228977.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194936 + ... + 194975.

It is an arithmetic number, because the mean of its divisors is an integer number (1364692).

Almost surely, 2^7798220 is an apocalyptic number.

It is an amenable number.

7798220 is an abundant number, since it is smaller than the sum of its proper divisors (8578084).

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

7798220 is a wasteful number, since it uses less digits than its factorization.

7798220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389920 (or 389918 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 7798220 is about 2792.5293194522. The cubic root of 7798220 is about 198.3041612972.

The spelling of 7798220 in words is "seven million, seven hundred ninety-eight thousand, two hundred twenty".