7866125 has 8 divisors (see below), whose sum is σ = 9817080. Its totient is φ = 6292800.

The previous prime is 7866107. The next prime is 7866127. The reversal of 7866125 is 5216687.

It can be written as a sum of positive squares in 4 ways, for example, as 104329 + 7761796 = 323^2 + 2786^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7866125 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7866127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31340 + ... + 31589.

It is an arithmetic number, because the mean of its divisors is an integer number (1227135).

Almost surely, 2^7866125 is an apocalyptic number.

It is an amenable number.

7866125 is a deficient number, since it is larger than the sum of its proper divisors (1950955).

7866125 is an equidigital number, since it uses as much as digits as its factorization.

7866125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62944 (or 62934 counting only the distinct ones).

The product of its digits is 20160, while the sum is 35.

The square root of 7866125 is about 2804.6612986241. The cubic root of 7866125 is about 198.8780933955.

The spelling of 7866125 in words is "seven million, eight hundred sixty-six thousand, one hundred twenty-five".