3684431 has 4 divisors (see below), whose sum is σ = 3693192. Its totient is φ = 3675672.

The previous prime is 3684419. The next prime is 3684451. The reversal of 3684431 is 1344863.

3684431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1344863 = 13 ⋅103451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3684431 is a prime.

It is a super-2 number, since 2×3684431² = 27150063587522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3684394 and 3684403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3684451) 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 in 3 ways as a sum of consecutive naturals, for example, 3716 + ... + 4601.

It is an arithmetic number, because the mean of its divisors is an integer number (923298).

Almost surely, 2^3684431 is an apocalyptic number.

3684431 is a deficient number, since it is larger than the sum of its proper divisors (8761).

3684431 is an equidigital number, since it uses as much as digits as its factorization.

3684431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8760.

The product of its digits is 6912, while the sum is 29.

The square root of 3684431 is about 1919.4871710954. The cubic root of 3684431 is about 154.4507930420.

The spelling of 3684431 in words is "three million, six hundred eighty-four thousand, four hundred thirty-one".