3321978 has 16 divisors (see below), whose sum is σ = 7248096. Its totient is φ = 1006640.

The previous prime is 3321977. The next prime is 3322001. The reversal of 3321978 is 8791233.

3321978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3321978² = 22071075664968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (3321973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25101 + ... + 25232.

It is an arithmetic number, because the mean of its divisors is an integer number (453006).

Almost surely, 2^3321978 is an apocalyptic number.

3321978 is an abundant number, since it is smaller than the sum of its proper divisors (3926118).

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

3321978 is a wasteful number, since it uses less digits than its factorization.

3321978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50349.

The product of its digits is 9072, while the sum is 33.

The square root of 3321978 is about 1822.6294192732. The cubic root of 3321978 is about 149.2103390881.

The spelling of 3321978 in words is "three million, three hundred twenty-one thousand, nine hundred seventy-eight".