3874161 has 4 divisors (see below), whose sum is σ = 5165552. Its totient is φ = 2582772.

The previous prime is 3874153. The next prime is 3874193. The reversal of 3874161 is 1614783.

It is a happy number.

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.

It is not a de Polignac number, because 3874161 - 2³ = 3874153 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3874111) 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, 645691 + ... + 645696.

It is an arithmetic number, because the mean of its divisors is an integer number (1291388).

Almost surely, 2^3874161 is an apocalyptic number.

It is an amenable number.

3874161 is a deficient number, since it is larger than the sum of its proper divisors (1291391).

3874161 is a wasteful number, since it uses less digits than its factorization.

3874161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291390.

The product of its digits is 4032, while the sum is 30.

The square root of 3874161 is about 1968.2888507534. The cubic root of 3874161 is about 157.0576958084.

The spelling of 3874161 in words is "three million, eight hundred seventy-four thousand, one hundred sixty-one".