2078653 has 4 divisors (see below), whose sum is σ = 2089728. Its totient is φ = 2067580.

The previous prime is 2078651. The next prime is 2078677. The reversal of 2078653 is 3568702.

2078653 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2078653 - 2¹ = 2078651 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2078651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5251 + ... + 5632.

It is an arithmetic number, because the mean of its divisors is an integer number (522432).

2^2078653 is an apocalyptic number.

It is an amenable number.

2078653 is a deficient number, since it is larger than the sum of its proper divisors (11075).

2078653 is a wasteful number, since it uses less digits than its factorization.

2078653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11074.

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

The square root of 2078653 is about 1441.7534463285. The cubic root of 2078653 is about 127.6225247919.

The spelling of 2078653 in words is "two million, seventy-eight thousand, six hundred fifty-three".