7872923 has 8 divisors (see below), whose sum is σ = 8391168. Its totient is φ = 7369384.

The previous prime is 7872919. The next prime is 7872929. The reversal of 7872923 is 3292787.

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

It is not a de Polignac number, because 7872923 - 2² = 7872919 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7872929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2561 + ... + 4722.

It is an arithmetic number, because the mean of its divisors is an integer number (1048896).

Almost surely, 2^7872923 is an apocalyptic number.

7872923 is a deficient number, since it is larger than the sum of its proper divisors (518245).

7872923 is a wasteful number, since it uses less digits than its factorization.

7872923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7353.

The product of its digits is 42336, while the sum is 38.

The square root of 7872923 is about 2805.8729479433. The cubic root of 7872923 is about 198.9353678477.

The spelling of 7872923 in words is "seven million, eight hundred seventy-two thousand, nine hundred twenty-three".