870667 has 8 divisors (see below), whose sum is σ = 1029600. Its totient is φ = 720384.

The previous prime is 870643. The next prime is 870679. The reversal of 870667 is 766078.

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

It is a de Polignac number, because none of the positive numbers 2^k-870667 is a prime.

It is a super-2 number, since 2×870667² = 1516122049778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (870367) 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, 1942 + ... + 2347.

It is an arithmetic number, because the mean of its divisors is an integer number (128700).

2⁸⁷⁰⁶⁶⁷ is an apocalyptic number.

870667 is a deficient number, since it is larger than the sum of its proper divisors (158933).

870667 is a wasteful number, since it uses less digits than its factorization.

870667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 870667 is about 933.0953863352. The cubic root of 870667 is about 95.4884172241.

The spelling of 870667 in words is "eight hundred seventy thousand, six hundred sixty-seven".