7934881 has 6 divisors (see below), whose sum is σ = 8050470. Its totient is φ = 7820928.

The previous prime is 7934867. The next prime is 7934917. The reversal of 7934881 is 1884397.

It can be written as a sum of positive squares in 3 ways, for example, as 731025 + 7203856 = 855^2 + 2684^2 .

It is not a de Polignac number, because 7934881 - 2⁹ = 7934369 is a prime.

It is a super-2 number, since 2×7934881² = 125924672968322, which contains 22 as substring.

It is a Duffinian number.

7934881 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7934821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4585 + ... + 6073.

It is an arithmetic number, because the mean of its divisors is an integer number (1341745).

Almost surely, 2^7934881 is an apocalyptic number.

It is an amenable number.

7934881 is a deficient number, since it is larger than the sum of its proper divisors (115589).

7934881 is an equidigital number, since it uses as much as digits as its factorization.

7934881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1562 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 7934881 is about 2816.8920817099. The cubic root of 7934881 is about 199.4558625816.

The spelling of 7934881 in words is "seven million, nine hundred thirty-four thousand, eight hundred eighty-one".