7930881 has 12 divisors (see below), whose sum is σ = 13092352. Its totient is φ = 4531896.

The previous prime is 7930861. The next prime is 7930903. The reversal of 7930881 is 1880397.

7930881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7930881 - 2⁵ = 7930849 is a prime.

It is a super-2 number, since 2×7930881² = 125797746872322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7930841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62881 + ... + 63006.

Almost surely, 2^7930881 is an apocalyptic number.

It is an amenable number.

7930881 is a deficient number, since it is larger than the sum of its proper divisors (5161471).

7930881 is a wasteful number, since it uses less digits than its factorization.

7930881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125900 (or 125897 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 7930881 is about 2816.1819898579. The cubic root of 7930881 is about 199.4223414929.

The spelling of 7930881 in words is "seven million, nine hundred thirty thousand, eight hundred eighty-one".