7406543 has 4 divisors (see below), whose sum is σ = 7842240. Its totient is φ = 6970848.

The previous prime is 7406537. The next prime is 7406563. The reversal of 7406543 is 3456047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3456047 = 7 ⋅493721.

It is a cyclic number.

It is not a de Polignac number, because 7406543 - 2⁶ = 7406479 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 (7406563) 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, 217823 + ... + 217856.

It is an arithmetic number, because the mean of its divisors is an integer number (1960560).

Almost surely, 2^7406543 is an apocalyptic number.

7406543 is a deficient number, since it is larger than the sum of its proper divisors (435697).

7406543 is a wasteful number, since it uses less digits than its factorization.

7406543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435696.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 7406543 is about 2721.4964633451. The cubic root of 7406543 is about 194.9269329581.

The spelling of 7406543 in words is "seven million, four hundred six thousand, five hundred forty-three".