3213215 has 8 divisors (see below), whose sum is σ = 4023648. Its totient is φ = 2458720.

The previous prime is 3213163. The next prime is 3213233. The reversal of 3213215 is 5123123.

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

It is not a de Polignac number, because 3213215 - 2⁶ = 3213151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3213193 and 3213202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13856 + ... + 14085.

It is an arithmetic number, because the mean of its divisors is an integer number (502956).

Almost surely, 2^3213215 is an apocalyptic number.

3213215 is a deficient number, since it is larger than the sum of its proper divisors (810433).

3213215 is a wasteful number, since it uses less digits than its factorization.

3213215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27969.

The product of its digits is 180, while the sum is 17.

The square root of 3213215 is about 1792.5442811825. The cubic root of 3213215 is about 147.5638333305.

Adding to 3213215 its reverse (5123123), we get a palindrome (8336338).

The spelling of 3213215 in words is "three million, two hundred thirteen thousand, two hundred fifteen".