3215671 has 8 divisors (see below), whose sum is σ = 3329424. Its totient is φ = 3103680.

The previous prime is 3215651. The next prime is 3215687. The reversal of 3215671 is 1765123.

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 3215671 - 2⁷ = 3215543 is a prime.

It is a Duffinian number.

3215671 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215651) 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, 4021 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (416178).

Almost surely, 2^3215671 is an apocalyptic number.

3215671 is a deficient number, since it is larger than the sum of its proper divisors (113753).

3215671 is a wasteful number, since it uses less digits than its factorization.

3215671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881.

The product of its digits is 1260, while the sum is 25.

The square root of 3215671 is about 1793.2292101123. The cubic root of 3215671 is about 147.6014202413.

The spelling of 3215671 in words is "three million, two hundred fifteen thousand, six hundred seventy-one".