867749 has 8 divisors (see below), whose sum is σ = 924000. Its totient is φ = 812592.

The previous prime is 867743. The next prime is 867773. The reversal of 867749 is 947768.

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

It is not a de Polignac number, because 867749 - 2⁴ = 867733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862 + ... + 2280.

It is an arithmetic number, because the mean of its divisors is an integer number (115500).

2⁸⁶⁷⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

867749 is a deficient number, since it is larger than the sum of its proper divisors (56251).

867749 is a wasteful number, since it uses less digits than its factorization.

867749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547.

The product of its digits is 84672, while the sum is 41.

The square root of 867749 is about 931.5304611230. The cubic root of 867749 is about 95.3816228316.

The spelling of 867749 in words is "eight hundred sixty-seven thousand, seven hundred forty-nine".