868172 has 12 divisors (see below), whose sum is σ = 1532160. Its totient is φ = 430416.

The previous prime is 868171. The next prime is 868177. The reversal of 868172 is 271868.

It is not an unprimeable number, because it can be changed into a prime (868171) 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, 347 + ... + 1362.

It is an arithmetic number, because the mean of its divisors is an integer number (127680).

2⁸⁶⁸¹⁷² is an apocalyptic number.

It is an amenable number.

868172 is a deficient number, since it is larger than the sum of its proper divisors (663988).

868172 is a wasteful number, since it uses less digits than its factorization.

868172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840 (or 1838 counting only the distinct ones).

The product of its digits is 5376, while the sum is 32.

The square root of 868172 is about 931.7574791758. The cubic root of 868172 is about 95.3971188150.

The spelling of 868172 in words is "eight hundred sixty-eight thousand, one hundred seventy-two".