10778881 has 4 divisors (see below), whose sum is σ = 11247552. Its totient is φ = 10310212.

The previous prime is 10778869. The next prime is 10778891. The reversal of 10778881 is 18887701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10778881 - 2⁵ = 10778849 is a prime.

It is a super-2 number, since 2×10778881² = 232368551224322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (10778891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234301 + ... + 234346.

It is an arithmetic number, because the mean of its divisors is an integer number (2811888).

Almost surely, 2^10778881 is an apocalyptic number.

It is an amenable number.

10778881 is a deficient number, since it is larger than the sum of its proper divisors (468671).

10778881 is an equidigital number, since it uses as much as digits as its factorization.

10778881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468670.

The product of its (nonzero) digits is 25088, while the sum is 40.

The square root of 10778881 is about 3283.1206191671. The cubic root of 10778881 is about 220.8977161591.

The spelling of 10778881 in words is "ten million, seven hundred seventy-eight thousand, eight hundred eighty-one".