7425891 has 24 divisors (see below), whose sum is σ = 12097680. Its totient is φ = 4498560.

The previous prime is 7425881. The next prime is 7425911. The reversal of 7425891 is 1985247.

7425891 is a `hidden beast` number, since 74 + 2 + 589 + 1 = 666.

7425891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7425891 - 2¹⁵ = 7393123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7425841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2131 + ... + 4403.

It is an arithmetic number, because the mean of its divisors is an integer number (504070).

Almost surely, 2^7425891 is an apocalyptic number.

7425891 is a deficient number, since it is larger than the sum of its proper divisors (4671789).

7425891 is a wasteful number, since it uses less digits than its factorization.

7425891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304 (or 2287 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 7425891 is about 2725.0488069024. The cubic root of 7425891 is about 195.0965202643.

The spelling of 7425891 in words is "seven million, four hundred twenty-five thousand, eight hundred ninety-one".