3287778 has 32 divisors (see below), whose sum is σ = 7207872. Its totient is φ = 993600.

The previous prime is 3287777. The next prime is 3287803. The reversal of 3287778 is 8777823.

It is not an unprimeable number, because it can be changed into a prime (3287771) 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, 4413 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (225246).

Almost surely, 2^3287778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3287778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3603936).

3287778 is an abundant number, since it is smaller than the sum of its proper divisors (3920094).

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

3287778 is a wasteful number, since it uses less digits than its factorization.

3287778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770.

The product of its digits is 131712, while the sum is 42.

The square root of 3287778 is about 1813.2230971395. The cubic root of 3287778 is about 148.6965281053.

The spelling of 3287778 in words is "three million, two hundred eighty-seven thousand, seven hundred seventy-eight".