7875000 has 168 divisors, whose sum is σ = 30468360. Its totient is φ = 1800000.

The previous prime is 7874983. The next prime is 7875013. The reversal of 7875000 is 5787.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

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 41 ways as a sum of consecutive naturals, for example, 1124997 + ... + 1125003.

Almost surely, 2^7875000 is an apocalyptic number.

7875000 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 7875000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15234180).

7875000 is an abundant number, since it is smaller than the sum of its proper divisors (22593360).

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

7875000 is an equidigital number, since it uses as much as digits as its factorization.

7875000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 7875000 is about 2806.2430400805. The cubic root of 7875000 is about 198.9528603948.

It can be divided in two parts, 78 and 75000, that added together give a triangular number (75078 = T₃₈₇).

The spelling of 7875000 in words is "seven million, eight hundred seventy-five thousand".