867049 has 4 divisors (see below), whose sum is σ = 874836. Its totient is φ = 859264.

The previous prime is 867037. The next prime is 867059. The reversal of 867049 is 940768.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 219024 + 648025 = 468^2 + 805^2 .

It is a cyclic number.

It is not a de Polignac number, because 867049 - 2¹¹ = 865001 is a prime.

It is a Duffinian number.

867049 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (867059) 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, 3724 + ... + 3949.

It is an arithmetic number, because the mean of its divisors is an integer number (218709).

2⁸⁶⁷⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

867049 is a deficient number, since it is larger than the sum of its proper divisors (7787).

867049 is a wasteful number, since it uses less digits than its factorization.

867049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7786.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 867049 is about 931.1546595491. The cubic root of 867049 is about 95.3559682943.

The spelling of 867049 in words is "eight hundred sixty-seven thousand, forty-nine".