2672643 has 4 divisors (see below), whose sum is σ = 3563528. Its totient is φ = 1781760.

The previous prime is 2672639. The next prime is 2672671. The reversal of 2672643 is 3462762.

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

It is not a de Polignac number, because 2672643 - 2² = 2672639 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 2672643.

It is not an unprimeable number, because it can be changed into a prime (2672633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445438 + ... + 445443.

It is an arithmetic number, because the mean of its divisors is an integer number (890882).

2^2672643 is an apocalyptic number.

2672643 is a deficient number, since it is larger than the sum of its proper divisors (890885).

2672643 is an equidigital number, since it uses as much as digits as its factorization.

2672643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890884.

The product of its digits is 12096, while the sum is 30.

The square root of 2672643 is about 1634.8220086603. The cubic root of 2672643 is about 138.7757715297.

The spelling of 2672643 in words is "two million, six hundred seventy-two thousand, six hundred forty-three".