3212928 has 48 divisors (see below), whose sum is σ = 9248850. Its totient is φ = 1070592.

The previous prime is 3212927. The next prime is 3212947. The reversal of 3212928 is 8292123.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2585664 + 627264 = 1608^2 + 792^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (3212927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 243 + ... + 2546.

Almost surely, 2^3212928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3212928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4624425).

3212928 is an abundant number, since it is smaller than the sum of its proper divisors (6035922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3212928 is a wasteful number, since it uses less digits than its factorization.

3212928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809 (or 2794 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 3212928 is about 1792.4642255844. The cubic root of 3212928 is about 147.5594397993.

It can be divided in two parts, 321 and 2928, that added together give a square (3249 = 57²).

The spelling of 3212928 in words is "three million, two hundred twelve thousand, nine hundred twenty-eight".