873706 has 4 divisors (see below), whose sum is σ = 1310562. Its totient is φ = 436852.

The previous prime is 873689. The next prime is 873707. The reversal of 873706 is 607378.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607378 = 2 ⋅303689.

It can be written as a sum of positive squares in only one way, i.e., 837225 + 36481 = 915^2 + 191^2 .

It is a super-3 number, since 3×873706³ = 2000862335933339448, which contains 333 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (873707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 218425 + ... + 218428.

2⁸⁷³⁷⁰⁶ is an apocalyptic number.

873706 is a deficient number, since it is larger than the sum of its proper divisors (436856).

873706 is a wasteful number, since it uses less digits than its factorization.

873706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436855.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 873706 is about 934.7224186891. The cubic root of 873706 is about 95.5993866781.

The spelling of 873706 in words is "eight hundred seventy-three thousand, seven hundred six".