653623103 has 6 divisors (see below), whose sum is σ = 760337136. Its totient is φ = 560248332.

The previous prime is 653623099. The next prime is 653623147. The reversal of 653623103 is 301326356.

It is a happy number.

It is not a de Polignac number, because 653623103 - 2² = 653623099 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 (653623403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6669575 + ... + 6669672.

It is an arithmetic number, because the mean of its divisors is an integer number (126722856).

Almost surely, 2^653623103 is an apocalyptic number.

653623103 is a deficient number, since it is larger than the sum of its proper divisors (106714033).

653623103 is a wasteful number, since it uses less digits than its factorization.

653623103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13339261 (or 13339254 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 653623103 is about 25566.0537236391. The cubic root of 653623103 is about 867.8455977529.

Adding to 653623103 its reverse (301326356), we get a palindrome (954949459).

The spelling of 653623103 in words is "six hundred fifty-three million, six hundred twenty-three thousand, one hundred three".