7951645 has 16 divisors (see below), whose sum is σ = 10426752. Its totient is φ = 5785920.

The previous prime is 7951639. The next prime is 7951667. The reversal of 7951645 is 5461597.

It is not a de Polignac number, because 7951645 - 2¹⁷ = 7820573 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3754 + ... + 5476.

It is an arithmetic number, because the mean of its divisors is an integer number (651672).

Almost surely, 2^7951645 is an apocalyptic number.

It is an amenable number.

7951645 is a deficient number, since it is larger than the sum of its proper divisors (2475107).

7951645 is a wasteful number, since it uses less digits than its factorization.

7951645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812.

The product of its digits is 37800, while the sum is 37.

The square root of 7951645 is about 2819.8661315743. The cubic root of 7951645 is about 199.5962270523.

The spelling of 7951645 in words is "seven million, nine hundred fifty-one thousand, six hundred forty-five".