864632 has 8 divisors (see below), whose sum is σ = 1621200. Its totient is φ = 432312.

The previous prime is 864631. The next prime is 864641. The reversal of 864632 is 236468.

864632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 864595 and 864604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54032 + ... + 54047.

It is an arithmetic number, because the mean of its divisors is an integer number (202650).

2⁸⁶⁴⁶³² is an apocalyptic number.

It is an amenable number.

864632 is a deficient number, since it is larger than the sum of its proper divisors (756568).

864632 is a wasteful number, since it uses less digits than its factorization.

864632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108085 (or 108081 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 864632 is about 929.8559028151. The cubic root of 864632 is about 95.2672805474.

It can be divided in two parts, 8646 and 32, that multiplied together give a palindrome (276672).

The spelling of 864632 in words is "eight hundred sixty-four thousand, six hundred thirty-two".