652986 has 12 divisors (see below), whose sum is σ = 1414842. Its totient is φ = 217656.

The previous prime is 652969. The next prime is 652991. The reversal of 652986 is 689256.

It can be written as a sum of positive squares in only one way, i.e., 463761 + 189225 = 681^2 + 435^2 .

It is a d-powerful number, because it can be written as 6² + 5⁸ + 9² + 2¹⁸ + 8² + 6² .

It is a self number, because there is not a number n which added to its sum of digits gives 652986.

It is an unprimeable number.

652986 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 5 ways as a sum of consecutive naturals, for example, 18121 + ... + 18156.

2⁶⁵²⁹⁸⁶ is an apocalyptic number.

652986 is an abundant number, since it is smaller than the sum of its proper divisors (761856).

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

652986 is a wasteful number, since it uses less digits than its factorization.

652986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36285 (or 36282 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 652986 is about 808.0754915229. The cubic root of 652986 is about 86.7563535724.

The spelling of 652986 in words is "six hundred fifty-two thousand, nine hundred eighty-six".