328812215 has 16 divisors (see below), whose sum is σ = 424027872. Its totient is φ = 243876864.

The previous prime is 328812203. The next prime is 328812223. The reversal of 328812215 is 512218823.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 328812215 - 2¹⁶ = 328746679 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23174 + ... + 34563.

It is an arithmetic number, because the mean of its divisors is an integer number (26501742).

Almost surely, 2^328812215 is an apocalyptic number.

328812215 is a deficient number, since it is larger than the sum of its proper divisors (95215657).

328812215 is a wasteful number, since it uses less digits than its factorization.

328812215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57826.

The product of its digits is 7680, while the sum is 32.

The square root of 328812215 is about 18133.1799472679. The cubic root of 328812215 is about 690.2122255537.

The spelling of 328812215 in words is "three hundred twenty-eight million, eight hundred twelve thousand, two hundred fifteen".