2978606 has 4 divisors (see below), whose sum is σ = 4467912. Its totient is φ = 1489302.

The previous prime is 2978593. The next prime is 2978627. The reversal of 2978606 is 6068792.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2978606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744650 + ... + 744653.

It is an arithmetic number, because the mean of its divisors is an integer number (1116978).

2^2978606 is an apocalyptic number.

2978606 is a deficient number, since it is larger than the sum of its proper divisors (1489306).

2978606 is a wasteful number, since it uses less digits than its factorization.

2978606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489305.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 2978606 is about 1725.8638416747. The cubic root of 2978606 is about 143.8813000729.

The spelling of 2978606 in words is "two million, nine hundred seventy-eight thousand, six hundred six".