23028291 has 48 divisors (see below), whose sum is σ = 40491360. Its totient is φ = 12418560.

The previous prime is 23028287. The next prime is 23028301. The reversal of 23028291 is 19282032.

It is a happy number.

23028291 is a nontrivial binomial coefficient, being equal to C(6787, 2).

It is not a de Polignac number, because 23028291 - 2² = 23028287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23028241) 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, 37015 + ... + 37631.

It is an arithmetic number, because the mean of its divisors is an integer number (843570).

Almost surely, 2^23028291 is an apocalyptic number.

23028291 is the 6786-th triangular number.

23028291 is a deficient number, since it is larger than the sum of its proper divisors (17463069).

23028291 is a wasteful number, since it uses less digits than its factorization.

23028291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 23028291 is about 4798.7801574984. The cubic root of 23028291 is about 284.5032528767.

The spelling of 23028291 in words is "twenty-three million, twenty-eight thousand, two hundred ninety-one".