2662543 has 8 divisors (see below), whose sum is σ = 2895200. Its totient is φ = 2433888.

The previous prime is 2662511. The next prime is 2662547. The reversal of 2662543 is 3452662.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2662543 - 2⁵ = 2662511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2662547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478 + ... + 2356.

It is an arithmetic number, because the mean of its divisors is an integer number (361900).

2^2662543 is an apocalyptic number.

2662543 is a deficient number, since it is larger than the sum of its proper divisors (232657).

2662543 is a wasteful number, since it uses less digits than its factorization.

2662543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001.

The product of its digits is 8640, while the sum is 28.

The square root of 2662543 is about 1631.7300634603. The cubic root of 2662543 is about 138.6007382242.

It can be divided in two parts, 266 and 2543, that added together give a square (2809 = 53²).

The spelling of 2662543 in words is "two million, six hundred sixty-two thousand, five hundred forty-three".