652890 has 32 divisors (see below), whose sum is σ = 1791360. Its totient is φ = 149184.

The previous prime is 652871. The next prime is 652903. The reversal of 652890 is 98256.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a d-powerful number, because it can be written as 6² + 5⁸ + 8⁶ + 2² + 9² + 0 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1345 + ... + 1764.

It is an arithmetic number, because the mean of its divisors is an integer number (55980).

2⁶⁵²⁸⁹⁰ is an apocalyptic number.

652890 is an abundant number, since it is smaller than the sum of its proper divisors (1138470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

652890 is a wasteful number, since it uses less digits than its factorization.

652890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3126.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 652890 is about 808.0160889487. The cubic root of 652890 is about 86.7521018130.

The spelling of 652890 in words is "six hundred fifty-two thousand, eight hundred ninety".