652865478 has 16 divisors (see below), whose sum is σ = 1306583040. Its totient is φ = 217479816.

The previous prime is 652865461. The next prime is 652865531. The reversal of 652865478 is 874568256.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 652865478.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25318 + ... + 44121.

It is an arithmetic number, because the mean of its divisors is an integer number (81661440).

Almost surely, 2^652865478 is an apocalyptic number.

652865478 is an abundant number, since it is smaller than the sum of its proper divisors (653717562).

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

652865478 is a wasteful number, since it uses less digits than its factorization.

652865478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71011.

The product of its digits is 3225600, while the sum is 51.

The square root of 652865478 is about 25551.2324164609. The cubic root of 652865478 is about 867.5101568738.

The spelling of 652865478 in words is "six hundred fifty-two million, eight hundred sixty-five thousand, four hundred seventy-eight".