3671813 has 8 divisors (see below), whose sum is σ = 3979008. Its totient is φ = 3374784.

The previous prime is 3671797. The next prime is 3671831. The reversal of 3671813 is 3181763.

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

It is a cyclic number.

It is not a de Polignac number, because 3671813 - 2⁴ = 3671797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3670813) 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, 1781 + ... + 3242.

It is an arithmetic number, because the mean of its divisors is an integer number (497376).

Almost surely, 2^3671813 is an apocalyptic number.

It is an amenable number.

3671813 is a deficient number, since it is larger than the sum of its proper divisors (307195).

3671813 is a wasteful number, since it uses less digits than its factorization.

3671813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5083.

The product of its digits is 3024, while the sum is 29.

The square root of 3671813 is about 1916.1975367900. The cubic root of 3671813 is about 154.2742764971.

The spelling of 3671813 in words is "three million, six hundred seventy-one thousand, eight hundred thirteen".