10778778 has 32 divisors (see below), whose sum is σ = 24782400. Its totient is φ = 3468528.

The previous prime is 10778773. The next prime is 10778783. The reversal of 10778778 is 87787701.

It is an interprime number because it is at equal distance from previous prime (10778773) and next prime (10778783).

It is not an unprimeable number, because it can be changed into a prime (10778773) 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 15 ways as a sum of consecutive naturals, for example, 1876 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (774450).

Almost surely, 2^10778778 is an apocalyptic number.

10778778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10778778 is an abundant number, since it is smaller than the sum of its proper divisors (14003622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10778778 is a wasteful number, since it uses less digits than its factorization.

10778778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6923 (or 6917 counting only the distinct ones).

The product of its (nonzero) digits is 153664, while the sum is 45.

The square root of 10778778 is about 3283.1049328342. The cubic root of 10778778 is about 220.8970125444.

The spelling of 10778778 in words is "ten million, seven hundred seventy-eight thousand, seven hundred seventy-eight".