10921923 has 6 divisors (see below), whose sum is σ = 15776124. Its totient is φ = 7281276.

The previous prime is 10921921. The next prime is 10921927. The reversal of 10921923 is 32912901.

It is not a de Polignac number, because 10921923 - 2¹ = 10921921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10921921) 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 5 ways as a sum of consecutive naturals, for example, 606765 + ... + 606782.

It is an arithmetic number, because the mean of its divisors is an integer number (2629354).

Almost surely, 2^10921923 is an apocalyptic number.

10921923 is a deficient number, since it is larger than the sum of its proper divisors (4854201).

10921923 is a wasteful number, since it uses less digits than its factorization.

10921923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213553 (or 1213550 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 10921923 is about 3304.8332786995. The cubic root of 10921923 is about 221.8705722319.

The spelling of 10921923 in words is "ten million, nine hundred twenty-one thousand, nine hundred twenty-three".