870319 has 4 divisors (see below), whose sum is σ = 900360. Its totient is φ = 840280.

The previous prime is 870301. The next prime is 870323. The reversal of 870319 is 913078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 913078 = 2 ⋅456539.

It is a cyclic number.

It is not a de Polignac number, because 870319 - 2⁹ = 869807 is a prime.

It is a super-2 number, since 2×870319² = 1514910323522, which contains 22 as substring.

It is a Duffinian number.

870319 is a modest number, since divided by 319 gives 87 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870329) 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 3 ways as a sum of consecutive naturals, for example, 14977 + ... + 15034.

It is an arithmetic number, because the mean of its divisors is an integer number (225090).

2⁸⁷⁰³¹⁹ is an apocalyptic number.

870319 is a deficient number, since it is larger than the sum of its proper divisors (30041).

870319 is a wasteful number, since it uses less digits than its factorization.

870319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30040.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 870319 is about 932.9088915859. The cubic root of 870319 is about 95.4756934934.

The spelling of 870319 in words is "eight hundred seventy thousand, three hundred nineteen".