653023 has 6 divisors (see below), whose sum is σ = 759696. Its totient is φ = 559692.

The previous prime is 652999. The next prime is 653033. The reversal of 653023 is 320356.

It is not a de Polignac number, because 653023 - 2⁵ = 652991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653033) 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, 6615 + ... + 6712.

It is an arithmetic number, because the mean of its divisors is an integer number (126616).

2⁶⁵³⁰²³ is an apocalyptic number.

653023 is a deficient number, since it is larger than the sum of its proper divisors (106673).

653023 is a wasteful number, since it uses less digits than its factorization.

653023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13341 (or 13334 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 653023 is about 808.0983850992. The cubic root of 653023 is about 86.7579921601.

Adding to 653023 its reverse (320356), we get a palindrome (973379).

The spelling of 653023 in words is "six hundred fifty-three thousand, twenty-three".