2670663 has 4 divisors (see below), whose sum is σ = 3560888. Its totient is φ = 1780440.

The previous prime is 2670653. The next prime is 2670667. The reversal of 2670663 is 3660762.

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

It is not a de Polignac number, because 2670663 - 2²¹ = 573511 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2670663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2670667) 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, 445108 + ... + 445113.

It is an arithmetic number, because the mean of its divisors is an integer number (890222).

2^2670663 is an apocalyptic number.

2670663 is a deficient number, since it is larger than the sum of its proper divisors (890225).

2670663 is an equidigital number, since it uses as much as digits as its factorization.

2670663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890224.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 2670663 is about 1634.2163259495. The cubic root of 2670663 is about 138.7414928637.

Subtracting 2670663 from its reverse (3660762), we obtain a palindrome (990099).

It can be divided in two parts, 2670 and 663, that added together give a palindrome (3333).

The spelling of 2670663 in words is "two million, six hundred seventy thousand, six hundred sixty-three".