7875427 has 6 divisors (see below), whose sum is σ = 9161268. Its totient is φ = 6750324.

The previous prime is 7875421. The next prime is 7875449. The reversal of 7875427 is 7245787.

It is not a de Polignac number, because 7875427 - 2³ = 7875419 is a prime.

It is a Duffinian number.

7875427 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7875427.

It is not an unprimeable number, because it can be changed into a prime (7875421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80313 + ... + 80410.

It is an arithmetic number, because the mean of its divisors is an integer number (1526878).

Almost surely, 2^7875427 is an apocalyptic number.

7875427 is a deficient number, since it is larger than the sum of its proper divisors (1285841).

7875427 is a wasteful number, since it uses less digits than its factorization.

7875427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160737 (or 160730 counting only the distinct ones).

The product of its digits is 109760, while the sum is 40.

The square root of 7875427 is about 2806.3191194160. The cubic root of 7875427 is about 198.9564562186.

The spelling of 7875427 in words is "seven million, eight hundred seventy-five thousand, four hundred twenty-seven".