10812978 has 48 divisors (see below), whose sum is σ = 25867296. Its totient is φ = 3237120.

The previous prime is 10812943. The next prime is 10812983. The reversal of 10812978 is 87921801.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 18925 + ... + 19487.

It is an arithmetic number, because the mean of its divisors is an integer number (538902).

Almost surely, 2^10812978 is an apocalyptic number.

10812978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10812978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12933648).

10812978 is an abundant number, since it is smaller than the sum of its proper divisors (15054318).

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

10812978 is a wasteful number, since it uses less digits than its factorization.

10812978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 10812978 is about 3288.3092920223. The cubic root of 10812978 is about 221.1303940341.

The spelling of 10812978 in words is "ten million, eight hundred twelve thousand, nine hundred seventy-eight".