7999760 has 60 divisors (see below), whose sum is σ = 19700748. Its totient is φ = 3020544.

The previous prime is 7999759. The next prime is 7999769. The reversal of 7999760 is 679997.

It can be written as a sum of positive squares in 2 ways, for example, as 2085136 + 5914624 = 1444^2 + 2432^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7999769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28742 + ... + 29018.

Almost surely, 2^7999760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7999760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9850374).

7999760 is an abundant number, since it is smaller than the sum of its proper divisors (11700988).

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

7999760 is a wasteful number, since it uses less digits than its factorization.

7999760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 7999760 is about 2828.3846980211. The cubic root of 7999760 is about 199.9979999800.

The spelling of 7999760 in words is "seven million, nine hundred ninety-nine thousand, seven hundred sixty".