3671957 has 4 divisors (see below), whose sum is σ = 3681516. Its totient is φ = 3662400.

The previous prime is 3671939. The next prime is 3671971. The reversal of 3671957 is 7591763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7591763 = 139 ⋅54617.

It can be written as a sum of positive squares in 2 ways, for example, as 2328676 + 1343281 = 1526^2 + 1159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3671957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3671957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3670957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4178 + ... + 4979.

It is an arithmetic number, because the mean of its divisors is an integer number (920379).

Almost surely, 2^3671957 is an apocalyptic number.

It is an amenable number.

3671957 is a deficient number, since it is larger than the sum of its proper divisors (9559).

3671957 is an equidigital number, since it uses as much as digits as its factorization.

3671957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9558.

The product of its digits is 39690, while the sum is 38.

The square root of 3671957 is about 1916.2351108358. The cubic root of 3671957 is about 154.2762932307.

The spelling of 3671957 in words is "three million, six hundred seventy-one thousand, nine hundred fifty-seven".