861652 has 12 divisors (see below), whose sum is σ = 1645056. Its totient is φ = 391640.

The previous prime is 861647. The next prime is 861659. The reversal of 861652 is 256168.

861652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 861652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9748 + ... + 9835.

It is an arithmetic number, because the mean of its divisors is an integer number (137088).

2⁸⁶¹⁶⁵² is an apocalyptic number.

It is an amenable number.

861652 is a deficient number, since it is larger than the sum of its proper divisors (783404).

861652 is a wasteful number, since it uses less digits than its factorization.

861652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19598 (or 19596 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 861652 is about 928.2521209241. The cubic root of 861652 is about 95.1577066568.

It can be divided in two parts, 8616 and 52, that added together give a palindrome (8668).

The spelling of 861652 in words is "eight hundred sixty-one thousand, six hundred fifty-two".