923401321 has 4 divisors (see below), whose sum is σ = 923462100. Its totient is φ = 923340544.

The previous prime is 923401313. The next prime is 923401327. The reversal of 923401321 is 123104329.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 754271296 + 169130025 = 27464^2 + 13005^2 .

It is a cyclic number.

It is not a de Polignac number, because 923401321 - 2³ = 923401313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (923401327) 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 3 ways as a sum of consecutive naturals, for example, 14745 + ... + 45433.

It is an arithmetic number, because the mean of its divisors is an integer number (230865525).

Almost surely, 2^923401321 is an apocalyptic number.

It is an amenable number.

923401321 is a deficient number, since it is larger than the sum of its proper divisors (60779).

923401321 is a wasteful number, since it uses less digits than its factorization.

923401321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60778.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 923401321 is about 30387.5191649467. The cubic root of 923401321 is about 973.7859343308.

The spelling of 923401321 in words is "nine hundred twenty-three million, four hundred one thousand, three hundred twenty-one".