867442 has 16 divisors (see below), whose sum is σ = 1423872. Its totient is φ = 394560.

The previous prime is 867431. The next prime is 867443. The reversal of 867442 is 244768.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (867443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 643 + ... + 1465.

It is an arithmetic number, because the mean of its divisors is an integer number (88992).

2⁸⁶⁷⁴⁴² is an apocalyptic number.

867442 is a deficient number, since it is larger than the sum of its proper divisors (556430).

867442 is a wasteful number, since it uses less digits than its factorization.

867442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873.

The product of its digits is 10752, while the sum is 31.

The square root of 867442 is about 931.3656639580. The cubic root of 867442 is about 95.3703731837.

The spelling of 867442 in words is "eight hundred sixty-seven thousand, four hundred forty-two".