2078566 has 8 divisors (see below), whose sum is σ = 3563280. Its totient is φ = 890808.

The previous prime is 2078551. The next prime is 2078591. The reversal of 2078566 is 6658702.

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

It is a d-powerful number, because it can be written as 2 + 0 + 7⁶ + 8 + 5⁹ + 6 + 6⁵ .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74221 + ... + 74248.

It is an arithmetic number, because the mean of its divisors is an integer number (445410).

2^2078566 is an apocalyptic number.

2078566 is a deficient number, since it is larger than the sum of its proper divisors (1484714).

2078566 is a wasteful number, since it uses less digits than its factorization.

2078566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148478.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2078566 is about 1441.7232744185. The cubic root of 2078566 is about 127.6207442615.

The spelling of 2078566 in words is "two million, seventy-eight thousand, five hundred sixty-six".