8972923 has 4 divisors (see below), whose sum is σ = 9500760. Its totient is φ = 8445088.

The previous prime is 8972903. The next prime is 8972933. The reversal of 8972923 is 3292798.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8972923 - 2¹³ = 8964731 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8972903) 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 3 ways as a sum of consecutive naturals, for example, 263893 + ... + 263926.

It is an arithmetic number, because the mean of its divisors is an integer number (2375190).

Almost surely, 2^8972923 is an apocalyptic number.

8972923 is a deficient number, since it is larger than the sum of its proper divisors (527837).

8972923 is a wasteful number, since it uses less digits than its factorization.

8972923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527836.

The product of its digits is 54432, while the sum is 40.

The square root of 8972923 is about 2995.4837672737. The cubic root of 8972923 is about 207.7995711669.

The spelling of 8972923 in words is "eight million, nine hundred seventy-two thousand, nine hundred twenty-three".