7956945 has 24 divisors (see below), whose sum is σ = 13895232. Its totient is φ = 4212000.

The previous prime is 7956913. The next prime is 7956947. The reversal of 7956945 is 5496597.

It is a happy number.

It is not a de Polignac number, because 7956945 - 2⁵ = 7956913 is a prime.

It is a super-3 number, since 3×7956945³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

7956945 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7956945.

It is not an unprimeable number, because it can be changed into a prime (7956947) 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, 6210 + ... + 7380.

It is an arithmetic number, because the mean of its divisors is an integer number (578968).

Almost surely, 2^7956945 is an apocalyptic number.

It is an amenable number.

7956945 is a deficient number, since it is larger than the sum of its proper divisors (5938287).

7956945 is a wasteful number, since it uses less digits than its factorization.

7956945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333 (or 1330 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 7956945 is about 2820.8057359556. The cubic root of 7956945 is about 199.6405627446.

The spelling of 7956945 in words is "seven million, nine hundred fifty-six thousand, nine hundred forty-five".