3390978 has 8 divisors (see below), whose sum is σ = 6781968. Its totient is φ = 1130324.

The previous prime is 3390977. The next prime is 3390979. The reversal of 3390978 is 8790933.

It is a happy number.

3390978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3390977) and next prime (3390979).

It is a sphenic number, since it is the product of 3 distinct primes.

3390978 is an admirable number.

It is a super-3 number, since 3×3390978³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (3390971) 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 3 ways as a sum of consecutive naturals, for example, 282576 + ... + 282587.

It is an arithmetic number, because the mean of its divisors is an integer number (847746).

Almost surely, 2^3390978 is an apocalyptic number.

3390978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3390978 is a wasteful number, since it uses less digits than its factorization.

3390978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565168.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 3390978 is about 1841.4608331431. The cubic root of 3390978 is about 150.2363385428.

The spelling of 3390978 in words is "three million, three hundred ninety thousand, nine hundred seventy-eight".