7912500 has 72 divisors (see below), whose sum is σ = 23186016. Its totient is φ = 2100000.

The previous prime is 7912477. The next prime is 7912507. The reversal of 7912500 is 52197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7912507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37395 + ... + 37605.

It is an arithmetic number, because the mean of its divisors is an integer number (322028).

Almost surely, 2^7912500 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 7912500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11593008).

7912500 is an abundant number, since it is smaller than the sum of its proper divisors (15273516).

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

7912500 is a wasteful number, since it uses less digits than its factorization.

7912500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 7912500 is about 2812.9166358070. The cubic root of 7912500 is about 199.2681586409.

Adding to 7912500 its reverse (52197), we get a palindrome (7964697).

The spelling of 7912500 in words is "seven million, nine hundred twelve thousand, five hundred".