28234923 has 8 divisors (see below), whose sum is σ = 37857600. Its totient is φ = 18717768.

The previous prime is 28234919. The next prime is 28234949. The reversal of 28234923 is 32943282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28234923 - 2² = 28234919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28234903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25753 + ... + 26826.

It is an arithmetic number, because the mean of its divisors is an integer number (4732200).

Almost surely, 2^28234923 is an apocalyptic number.

28234923 is a deficient number, since it is larger than the sum of its proper divisors (9622677).

28234923 is a wasteful number, since it uses less digits than its factorization.

28234923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52761.

The product of its digits is 20736, while the sum is 33.

The square root of 28234923 is about 5313.6543922239. The cubic root of 28234923 is about 304.5057766760.

The spelling of 28234923 in words is "twenty-eight million, two hundred thirty-four thousand, nine hundred twenty-three".