862164 has 36 divisors (see below), whose sum is σ = 2262624. Its totient is φ = 287064.

The previous prime is 862159. The next prime is 862171. The reversal of 862164 is 461268.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 529 + ... + 1415.

2⁸⁶²¹⁶⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 862164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1131312).

862164 is an abundant number, since it is smaller than the sum of its proper divisors (1400460).

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

862164 is a wasteful number, since it uses less digits than its factorization.

862164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 892 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 862164 is about 928.5278671101. The cubic root of 862164 is about 95.1765507295.

Adding to 862164 its product of digits (2304), we get a palindrome (864468).

The spelling of 862164 in words is "eight hundred sixty-two thousand, one hundred sixty-four".