7880704 has 60 divisors (see below), whose sum is σ = 17432044. Its totient is φ = 3538944.

The previous prime is 7880693. The next prime is 7880713. The reversal of 7880704 is 4070887.

It can be written as a sum of positive squares in 2 ways, for example, as 4194304 + 3686400 = 2048^2 + 1920^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7880704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212974 + ... + 213010.

Almost surely, 2^7880704 is an apocalyptic number.

7880704 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7880704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8716022).

7880704 is an abundant number, since it is smaller than the sum of its proper divisors (9551340).

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

7880704 is an equidigital number, since it uses as much as digits as its factorization.

7880704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 7880704 is about 2807.2591615310. The cubic root of 7880704 is about 199.0008838121. Note that the first 3 decimals are identical.

The spelling of 7880704 in words is "seven million, eight hundred eighty thousand, seven hundred four".