652389 has 4 divisors (see below), whose sum is σ = 869856. Its totient is φ = 434924.

The previous prime is 652381. The next prime is 652411. The reversal of 652389 is 983256.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 652389 - 2³ = 652381 is a prime.

It is a super-2 number, since 2×652389² = 851222814642, which contains 22 as substring.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652381) 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 in 3 ways as a sum of consecutive naturals, for example, 108729 + ... + 108734.

It is an arithmetic number, because the mean of its divisors is an integer number (217464).

2⁶⁵²³⁸⁹ is an apocalyptic number.

It is an amenable number.

652389 is a deficient number, since it is larger than the sum of its proper divisors (217467).

652389 is a wasteful number, since it uses less digits than its factorization.

652389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217466.

The product of its digits is 12960, while the sum is 33.

The square root of 652389 is about 807.7060108728. The cubic root of 652389 is about 86.7299061777.

The spelling of 652389 in words is "six hundred fifty-two thousand, three hundred eighty-nine".