7871425 has 12 divisors (see below), whose sum is σ = 10335276. Its totient is φ = 5926400.

The previous prime is 7871411. The next prime is 7871429. The reversal of 7871425 is 5241787.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 986049 + 6885376 = 993^2 + 2624^2 .

It is not a de Polignac number, because 7871425 - 2⁵ = 7871393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7871429) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8836 + ... + 9685.

It is an arithmetic number, because the mean of its divisors is an integer number (861273).

Almost surely, 2^7871425 is an apocalyptic number.

It is an amenable number.

7871425 is a deficient number, since it is larger than the sum of its proper divisors (2463851).

7871425 is a wasteful number, since it uses less digits than its factorization.

7871425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18548 (or 18543 counting only the distinct ones).

The product of its digits is 15680, while the sum is 34.

The square root of 7871425 is about 2805.6059951461. The cubic root of 7871425 is about 198.9227497437.

The spelling of 7871425 in words is "seven million, eight hundred seventy-one thousand, four hundred twenty-five".