923489645 has 8 divisors (see below), whose sum is σ = 1193432856. Its totient is φ = 681961536.

The previous prime is 923489621. The next prime is 923489647. The reversal of 923489645 is 546984329.

It can be written as a sum of positive squares in 4 ways, for example, as 38962564 + 884527081 = 6242^2 + 29741^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-923489645 is a prime.

It is a super-3 number, since 3×923489645³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 923489593 and 923489602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923489647) 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 7 ways as a sum of consecutive naturals, for example, 7103702 + ... + 7103831.

It is an arithmetic number, because the mean of its divisors is an integer number (149179107).

Almost surely, 2^923489645 is an apocalyptic number.

It is an amenable number.

923489645 is a deficient number, since it is larger than the sum of its proper divisors (269943211).

923489645 is a wasteful number, since it uses less digits than its factorization.

923489645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14207551.

The product of its digits is 1866240, while the sum is 50.

The square root of 923489645 is about 30388.9724242199. The cubic root of 923489645 is about 973.8169811158.

The spelling of 923489645 in words is "nine hundred twenty-three million, four hundred eighty-nine thousand, six hundred forty-five".