3287978 has 4 divisors (see below), whose sum is σ = 4931970. Its totient is φ = 1643988.

The previous prime is 3287959. The next prime is 3287989. The reversal of 3287978 is 8797823.

It is a happy number.

3287978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2948089 + 339889 = 1717^2 + 583^2 .

It is a d-powerful number, because it can be written as 3¹¹ + 2¹⁷ + 8 + 7 + 9⁵ + 7⁷ + 8⁷ .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 821993 + ... + 821996.

Almost surely, 2^3287978 is an apocalyptic number.

3287978 is a deficient number, since it is larger than the sum of its proper divisors (1643992).

3287978 is a wasteful number, since it uses less digits than its factorization.

3287978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643991.

The product of its digits is 169344, while the sum is 44.

The square root of 3287978 is about 1813.2782467123. The cubic root of 3287978 is about 148.6995431814.

The spelling of 3287978 in words is "three million, two hundred eighty-seven thousand, nine hundred seventy-eight".