3685873 has 4 divisors (see below), whose sum is σ = 3691008. Its totient is φ = 3680740.

The previous prime is 3685861. The next prime is 3685879. The reversal of 3685873 is 3785863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3785863 = 29 ⋅130547.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3685873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3685879) 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, 1273 + ... + 2998.

It is an arithmetic number, because the mean of its divisors is an integer number (922752).

Almost surely, 2^3685873 is an apocalyptic number.

It is an amenable number.

3685873 is a deficient number, since it is larger than the sum of its proper divisors (5135).

3685873 is an equidigital number, since it uses as much as digits as its factorization.

3685873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5134.

The product of its digits is 120960, while the sum is 40.

The square root of 3685873 is about 1919.8627555114. The cubic root of 3685873 is about 154.4709398883.

It can be divided in two parts, 368 and 5873, that added together give a square (6241 = 79²).

The spelling of 3685873 in words is "three million, six hundred eighty-five thousand, eight hundred seventy-three".