7660520 has 64 divisors (see below), whose sum is σ = 19958400. Its totient is φ = 2592000.

The previous prime is 7660507. The next prime is 7660529. The reversal of 7660520 is 250667.

It is a self number, because there is not a number n which added to its sum of digits gives 7660520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7660529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30395 + ... + 30645.

It is an arithmetic number, because the mean of its divisors is an integer number (311850).

Almost surely, 2^7660520 is an apocalyptic number.

7660520 is a gapful number since it is divisible by the number (70) 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 7660520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9979200).

7660520 is an abundant number, since it is smaller than the sum of its proper divisors (12297880).

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

7660520 is a wasteful number, since it uses less digits than its factorization.

7660520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 7660520 is about 2767.7644408439. The cubic root of 7660520 is about 197.1300128658.

The spelling of 7660520 in words is "seven million, six hundred sixty thousand, five hundred twenty".