7894220 has 24 divisors (see below), whose sum is σ = 16808064. Its totient is φ = 3113856.

The previous prime is 7894219. The next prime is 7894247. The reversal of 7894220 is 224987.

7894220 is nontrivially palindromic in base 11.

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, 1244 + ... + 4163.

It is an arithmetic number, because the mean of its divisors is an integer number (700336).

Almost surely, 2^7894220 is an apocalyptic number.

It is an amenable number.

7894220 is an abundant number, since it is smaller than the sum of its proper divisors (8913844).

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

7894220 is a wasteful number, since it uses less digits than its factorization.

7894220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5489 (or 5487 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 7894220 is about 2809.6654605130. The cubic root of 7894220 is about 199.1145859946.

The spelling of 7894220 in words is "seven million, eight hundred ninety-four thousand, two hundred twenty".