923481 has 20 divisors (see below), whose sum is σ = 1487332. Its totient is φ = 567648.

The previous prime is 923471. The next prime is 923501. The reversal of 923481 is 184329.

It can be written as a sum of positive squares in 2 ways, for example, as 455625 + 467856 = 675^2 + 684^2 .

It is not a de Polignac number, because 923481 - 2⁵ = 923449 is a prime.

It is a super-2 number, since 2×923481² = 1705634314722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923411) 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 19 ways as a sum of consecutive naturals, for example, 615 + ... + 1491.

2⁹²³⁴⁸¹ is an apocalyptic number.

It is an amenable number.

923481 is a deficient number, since it is larger than the sum of its proper divisors (563851).

923481 is a wasteful number, since it uses less digits than its factorization.

923481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902 (or 893 counting only the distinct ones).

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

The square root of 923481 is about 960.9791881201. The cubic root of 923481 is about 97.3813942398.

The spelling of 923481 in words is "nine hundred twenty-three thousand, four hundred eighty-one".