11862543 has 32 divisors (see below), whose sum is σ = 19975680. Its totient is φ = 6082560.

The previous prime is 11862527. The next prime is 11862547. The reversal of 11862543 is 34526811.

It is not a de Polignac number, because 11862543 - 2⁴ = 11862527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11862543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11862547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20271 + ... + 20847.

It is an arithmetic number, because the mean of its divisors is an integer number (624240).

Almost surely, 2^11862543 is an apocalyptic number.

11862543 is a deficient number, since it is larger than the sum of its proper divisors (8113137).

11862543 is a wasteful number, since it uses less digits than its factorization.

11862543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687.

The product of its digits is 5760, while the sum is 30.

The square root of 11862543 is about 3444.2042622353. The cubic root of 11862543 is about 228.0653283097.

The spelling of 11862543 in words is "eleven million, eight hundred sixty-two thousand, five hundred forty-three".