23011929 has 12 divisors (see below), whose sum is σ = 33614100. Its totient is φ = 15168384.

The previous prime is 23011921. The next prime is 23011949. The reversal of 23011929 is 92911032.

It can be written as a sum of positive squares in 2 ways, for example, as 6365529 + 16646400 = 2523^2 + 4080^2 .

It is not a de Polignac number, because 23011929 - 2³ = 23011921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23011921) 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 11 ways as a sum of consecutive naturals, for example, 13564 + ... + 15165.

It is an arithmetic number, because the mean of its divisors is an integer number (2801175).

Almost surely, 2^23011929 is an apocalyptic number.

It is an amenable number.

23011929 is a deficient number, since it is larger than the sum of its proper divisors (10602171).

23011929 is a wasteful number, since it uses less digits than its factorization.

23011929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28824 (or 28821 counting only the distinct ones).

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

The square root of 23011929 is about 4797.0750463173. The cubic root of 23011929 is about 284.4358554140.

The spelling of 23011929 in words is "twenty-three million, eleven thousand, nine hundred twenty-nine".