10920915 has 48 divisors (see below), whose sum is σ = 20386080. Its totient is φ = 5391360.

The previous prime is 10920913. The next prime is 10920937. The reversal of 10920915 is 51902901.

It is a happy number.

10920915 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10920915 - 2¹ = 10920913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10920913) 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 in 47 ways as a sum of consecutive naturals, for example, 45195 + ... + 45435.

It is an arithmetic number, because the mean of its divisors is an integer number (424710).

Almost surely, 2^10920915 is an apocalyptic number.

10920915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10920915 is a deficient number, since it is larger than the sum of its proper divisors (9465165).

10920915 is a wasteful number, since it uses less digits than its factorization.

10920915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 10920915 is about 3304.6807712697. The cubic root of 10920915 is about 221.8637464371.

The spelling of 10920915 in words is "ten million, nine hundred twenty thousand, nine hundred fifteen".