3671551 has 4 divisors (see below), whose sum is σ = 3953992. Its totient is φ = 3389112.

The previous prime is 3671543. The next prime is 3671561. The reversal of 3671551 is 1551763.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3671551 - 2³ = 3671543 is a prime.

It is a Duffinian number.

3671551 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3671501) 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, 141201 + ... + 141226.

It is an arithmetic number, because the mean of its divisors is an integer number (988498).

Almost surely, 2^3671551 is an apocalyptic number.

3671551 is a deficient number, since it is larger than the sum of its proper divisors (282441).

3671551 is a wasteful number, since it uses less digits than its factorization.

3671551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282440.

The product of its digits is 3150, while the sum is 28.

The square root of 3671551 is about 1916.1291710112. The cubic root of 3671551 is about 154.2706070272.

The spelling of 3671551 in words is "three million, six hundred seventy-one thousand, five hundred fifty-one".