867949 has 8 divisors (see below), whose sum is σ = 904320. Its totient is φ = 832416.

The previous prime is 867947. The next prime is 867959. The reversal of 867949 is 949768.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 867949 - 2¹ = 867947 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2617 + ... + 2929.

It is an arithmetic number, because the mean of its divisors is an integer number (113040).

2⁸⁶⁷⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

867949 is a deficient number, since it is larger than the sum of its proper divisors (36371).

867949 is a wasteful number, since it uses less digits than its factorization.

867949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419.

The product of its digits is 108864, while the sum is 43.

The square root of 867949 is about 931.6378051582. The cubic root of 867949 is about 95.3889501652.

The spelling of 867949 in words is "eight hundred sixty-seven thousand, nine hundred forty-nine".