10947920 has 20 divisors (see below), whose sum is σ = 25454100. Its totient is φ = 4379136.

The previous prime is 10947889. The next prime is 10947941. The reversal of 10947920 is 2974901.

It can be written as a sum of positive squares in 2 ways, for example, as 1263376 + 9684544 = 1124^2 + 3112^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68345 + ... + 68504.

It is an arithmetic number, because the mean of its divisors is an integer number (1272705).

Almost surely, 2^10947920 is an apocalyptic number.

10947920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10947920 is an abundant number, since it is smaller than the sum of its proper divisors (14506180).

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

10947920 is a wasteful number, since it uses less digits than its factorization.

10947920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136862 (or 136856 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 10947920 is about 3308.7641197281. The cubic root of 10947920 is about 222.0464691837.

The spelling of 10947920 in words is "ten million, nine hundred forty-seven thousand, nine hundred twenty".