7125858 has 24 divisors (see below), whose sum is σ = 15769728. Its totient is φ = 2324472.

The previous prime is 7125847. The next prime is 7125863. The reversal of 7125858 is 8585217.

7125858 is a `hidden beast` number, since 71 + 2 + 585 + 8 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3366 + ... + 5057.

It is an arithmetic number, because the mean of its divisors is an integer number (657072).

Almost surely, 2^7125858 is an apocalyptic number.

7125858 is an abundant number, since it is smaller than the sum of its proper divisors (8643870).

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

7125858 is a wasteful number, since it uses less digits than its factorization.

7125858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478 (or 8475 counting only the distinct ones).

The product of its digits is 22400, while the sum is 36.

The square root of 7125858 is about 2669.4302762949. The cubic root of 7125858 is about 192.4327802631.

The spelling of 7125858 in words is "seven million, one hundred twenty-five thousand, eight hundred fifty-eight".