2078567 has 4 divisors (see below), whose sum is σ = 2082696. Its totient is φ = 2074440.

The previous prime is 2078551. The next prime is 2078591. The reversal of 2078567 is 7658702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7658702 = 2 ⋅3829351.

It is a cyclic number.

It is not a de Polignac number, because 2078567 - 2⁴ = 2078551 is a prime.

It is a d-powerful number, because it can be written as 2 + 0 + 7 + 8 + 5⁹ + 6⁵ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078507) 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, 1184 + ... + 2357.

It is an arithmetic number, because the mean of its divisors is an integer number (520674).

2^2078567 is an apocalyptic number.

2078567 is a deficient number, since it is larger than the sum of its proper divisors (4129).

2078567 is an equidigital number, since it uses as much as digits as its factorization.

2078567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 2078567 is about 1441.7236212256. The cubic root of 2078567 is about 127.6207647277.

It can be divided in two parts, 20 and 78567, that added together give a palindrome (78587).

The spelling of 2078567 in words is "two million, seventy-eight thousand, five hundred sixty-seven".