653830623 has 28 divisors (see below), whose sum is σ = 992793760. Its totient is φ = 430331616.

The previous prime is 653830621. The next prime is 653830643. The reversal of 653830623 is 326038356.

It is a happy number.

It is not a de Polignac number, because 653830623 - 2¹ = 653830621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653830621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 51915 + ... + 63267.

It is an arithmetic number, because the mean of its divisors is an integer number (35456920).

Almost surely, 2^653830623 is an apocalyptic number.

653830623 is a deficient number, since it is larger than the sum of its proper divisors (338963137).

653830623 is an equidigital number, since it uses as much as digits as its factorization.

653830623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11450 (or 11435 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 653830623 is about 25570.1119082416. Note that the first 3 decimals coincide. The cubic root of 653830623 is about 867.9374326658.

Adding to 653830623 its reverse (326038356), we get a palindrome (979868979).

The spelling of 653830623 in words is "six hundred fifty-three million, eight hundred thirty thousand, six hundred twenty-three".