7956081 has 18 divisors (see below), whose sum is σ = 13369122. Its totient is φ = 4546080.

The previous prime is 7956077. The next prime is 7956089. The reversal of 7956081 is 1806597.

It can be written as a sum of positive squares in only one way, i.e., 4769856 + 3186225 = 2184^2 + 1785^2 .

It is not a de Polignac number, because 7956081 - 2² = 7956077 is a prime.

It is a super-2 number, since 2×7956081² = 126598449757122, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7956089) 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 17 ways as a sum of consecutive naturals, for example, 8580 + ... + 9461.

It is an arithmetic number, because the mean of its divisors is an integer number (742729).

Almost surely, 2^7956081 is an apocalyptic number.

It is an amenable number.

7956081 is a deficient number, since it is larger than the sum of its proper divisors (5413041).

7956081 is a wasteful number, since it uses less digits than its factorization.

7956081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18061 (or 18051 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 7956081 is about 2820.6525840663. The cubic root of 7956081 is about 199.6333365336.

The spelling of 7956081 in words is "seven million, nine hundred fifty-six thousand, eighty-one".