3212778 has 32 divisors (see below), whose sum is σ = 6930432. Its totient is φ = 990000.

The previous prime is 3212777. The next prime is 3212791. The reversal of 3212778 is 8772123.

It is not an unprimeable number, because it can be changed into a prime (3212777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3903 + ... + 4653.

It is an arithmetic number, because the mean of its divisors is an integer number (216576).

Almost surely, 2^3212778 is an apocalyptic number.

3212778 is an abundant number, since it is smaller than the sum of its proper divisors (3717654).

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

3212778 is a wasteful number, since it uses less digits than its factorization.

3212778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810.

The product of its digits is 4704, while the sum is 30.

The square root of 3212778 is about 1792.4223832568. The cubic root of 3212778 is about 147.5571434245.

The spelling of 3212778 in words is "three million, two hundred twelve thousand, seven hundred seventy-eight".