653612 has 6 divisors (see below), whose sum is σ = 1143828. Its totient is φ = 326804.

The previous prime is 653593. The next prime is 653617. The reversal of 653612 is 216356.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 653612.

It is not an unprimeable number, because it can be changed into a prime (653617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81698 + ... + 81705.

It is an arithmetic number, because the mean of its divisors is an integer number (190638).

2⁶⁵³⁶¹² is an apocalyptic number.

It is an amenable number.

653612 is a deficient number, since it is larger than the sum of its proper divisors (490216).

653612 is a wasteful number, since it uses less digits than its factorization.

653612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163407 (or 163405 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 653612 is about 808.4627387827. The cubic root of 653612 is about 86.7840683736.

Adding to 653612 its reverse (216356), we get a palindrome (869968).

The spelling of 653612 in words is "six hundred fifty-three thousand, six hundred twelve".