653530923 has 10 divisors (see below), whose sum is σ = 976262364. Its totient is φ = 435687228.

The previous prime is 653530919. The next prime is 653530937. The reversal of 653530923 is 329035356.

653530923 is a `hidden beast` number, since 6 + 535 + 30 + 92 + 3 = 666.

It is not a de Polignac number, because 653530923 - 2² = 653530919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (653530123) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4034061 + ... + 4034222.

Almost surely, 2^653530923 is an apocalyptic number.

653530923 is a deficient number, since it is larger than the sum of its proper divisors (322731441).

653530923 is an equidigital number, since it uses as much as digits as its factorization.

653530923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8068295 (or 8068286 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 36.

The square root of 653530923 is about 25564.2508789129. The cubic root of 653530923 is about 867.8047986197.

The spelling of 653530923 in words is "six hundred fifty-three million, five hundred thirty thousand, nine hundred twenty-three".