7912520 has 96 divisors (see below), whose sum is σ = 22654080. Its totient is φ = 2459520.

The previous prime is 7912519. The next prime is 7912523. The reversal of 7912520 is 252197.

It is a self number, because there is not a number n which added to its sum of digits gives 7912520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7912523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21377 + ... + 21743.

It is an arithmetic number, because the mean of its divisors is an integer number (235980).

Almost surely, 2^7912520 is an apocalyptic number.

7912520 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 7912520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11327040).

7912520 is an abundant number, since it is smaller than the sum of its proper divisors (14741560).

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

7912520 is a wasteful number, since it uses less digits than its factorization.

7912520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 7912520 is about 2812.9201908337. The cubic root of 7912520 is about 199.2683265338.

The spelling of 7912520 in words is "seven million, nine hundred twelve thousand, five hundred twenty".