23067945 has 12 divisors (see below), whose sum is σ = 39984516. Its totient is φ = 12302880.

The previous prime is 23067931. The next prime is 23067949. The reversal of 23067945 is 54976032.

It can be written as a sum of positive squares in 2 ways, for example, as 12257001 + 10810944 = 3501^2 + 3288^2 .

It is not a de Polignac number, because 23067945 - 2⁹ = 23067433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23067949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 256266 + ... + 256355.

It is an arithmetic number, because the mean of its divisors is an integer number (3332043).

Almost surely, 2^23067945 is an apocalyptic number.

It is an amenable number.

23067945 is a deficient number, since it is larger than the sum of its proper divisors (16916571).

23067945 is a wasteful number, since it uses less digits than its factorization.

23067945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512632 (or 512629 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 23067945 is about 4802.9100553727. The cubic root of 23067945 is about 284.6664611467. Note that the first 3 decimals are identical.

The spelling of 23067945 in words is "twenty-three million, sixty-seven thousand, nine hundred forty-five".