652665 has 16 divisors (see below), whose sum is σ = 1124928. Its totient is φ = 321216.

The previous prime is 652657. The next prime is 652667. The reversal of 652665 is 566256.

It is not a de Polignac number, because 652665 - 2³ = 652657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (652667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1479 + ... + 1868.

It is an arithmetic number, because the mean of its divisors is an integer number (70308).

2⁶⁵²⁶⁶⁵ is an apocalyptic number.

652665 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

652665 is a deficient number, since it is larger than the sum of its proper divisors (472263).

652665 is a wasteful number, since it uses less digits than its factorization.

652665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3368.

The product of its digits is 10800, while the sum is 30.

The square root of 652665 is about 807.8768470503. The cubic root of 652665 is about 86.7421351185.

The spelling of 652665 in words is "six hundred fifty-two thousand, six hundred sixty-five".