923378653 has 2 divisors, whose sum is σ = 923378654. Its totient is φ = 923378652.

The previous prime is 923378639. The next prime is 923378711. The reversal of 923378653 is 356873329.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846693604 + 76685049 = 29098^2 + 8757^2 .

It is a cyclic number.

It is not a de Polignac number, because 923378653 - 2¹⁷ = 923247581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (923378633) 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 as a sum of consecutive naturals, namely, 461689326 + 461689327.

It is an arithmetic number, because the mean of its divisors is an integer number (461689327).

Almost surely, 2^923378653 is an apocalyptic number.

It is an amenable number.

923378653 is a deficient number, since it is larger than the sum of its proper divisors (1).

923378653 is an equidigital number, since it uses as much as digits as its factorization.

923378653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 46.

The square root of 923378653 is about 30387.1461805810. The cubic root of 923378653 is about 973.7779659789. Note that the first 3 decimals are identical.

The spelling of 923378653 in words is "nine hundred twenty-three million, three hundred seventy-eight thousand, six hundred fifty-three".