10881979 has 2 divisors, whose sum is σ = 10881980. Its totient is φ = 10881978.

The previous prime is 10881971. The next prime is 10881991. The reversal of 10881979 is 97918801.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10881979 - 2³ = 10881971 is a prime.

It is not a weakly prime, because it can be changed into another prime (10881971) 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 as a sum of consecutive naturals, namely, 5440989 + 5440990.

It is an arithmetic number, because the mean of its divisors is an integer number (5440990).

Almost surely, 2^10881979 is an apocalyptic number.

10881979 is a deficient number, since it is larger than the sum of its proper divisors (1).

10881979 is an equidigital number, since it uses as much as digits as its factorization.

10881979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 43.

The square root of 10881979 is about 3298.7844731052. The cubic root of 10881979 is about 221.5997644847.

The spelling of 10881979 in words is "ten million, eight hundred eighty-one thousand, nine hundred seventy-nine".