2078563 has 4 divisors (see below), whose sum is σ = 2086560. Its totient is φ = 2070568.

The previous prime is 2078551. The next prime is 2078591. The reversal of 2078563 is 3658702.

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

It is a cyclic number.

It is not a de Polignac number, because 2078563 - 2⁹ = 2078051 is a prime.

It is a d-powerful number, because it can be written as 2 + 0 + 7⁶ + 8 + 5⁹ + 6⁵ + 3 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2078513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3595 + ... + 4132.

It is an arithmetic number, because the mean of its divisors is an integer number (521640).

2^2078563 is an apocalyptic number.

2078563 is a deficient number, since it is larger than the sum of its proper divisors (7997).

2078563 is an equidigital number, since it uses as much as digits as its factorization.

2078563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7996.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2078563 is about 1441.7222339965. The cubic root of 2078563 is about 127.6206828630.

The spelling of 2078563 in words is "two million, seventy-eight thousand, five hundred sixty-three".