923642653 has 2 divisors, whose sum is σ = 923642654. Its totient is φ = 923642652.

The previous prime is 923642651. The next prime is 923642659. The reversal of 923642653 is 356246329.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 809857764 + 113784889 = 28458^2 + 10667^2 .

It is a cyclic number.

It is not a de Polignac number, because 923642653 - 2¹ = 923642651 is a prime.

Together with 923642651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (923642651) 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, 461821326 + 461821327.

It is an arithmetic number, because the mean of its divisors is an integer number (461821327).

Almost surely, 2^923642653 is an apocalyptic number.

It is an amenable number.

923642653 is a deficient number, since it is larger than the sum of its proper divisors (1).

923642653 is an equidigital number, since it uses as much as digits as its factorization.

923642653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 40.

The square root of 923642653 is about 30391.4898121168. The cubic root of 923642653 is about 973.8707603004.

The spelling of 923642653 in words is "nine hundred twenty-three million, six hundred forty-two thousand, six hundred fifty-three".