7871250 has 40 divisors (see below), whose sum is σ = 19681200. Its totient is φ = 2098000.

The previous prime is 7871243. The next prime is 7871251. The reversal of 7871250 is 521787.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (7871251) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2701 + ... + 4799.

It is an arithmetic number, because the mean of its divisors is an integer number (492030).

Almost surely, 2^7871250 is an apocalyptic number.

7871250 is the 1500-th nonagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7871250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9840600).

7871250 is an abundant number, since it is smaller than the sum of its proper divisors (11809950).

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

7871250 is a wasteful number, since it uses less digits than its factorization.

7871250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2124 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 7871250 is about 2805.5748074147. The cubic root of 7871250 is about 198.9212755617.

The spelling of 7871250 in words is "seven million, eight hundred seventy-one thousand, two hundred fifty".