7940543 has 8 divisors (see below), whose sum is σ = 8923488. Its totient is φ = 7010784.

The previous prime is 7940539. The next prime is 7940549. The reversal of 7940543 is 3450497.

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 7940543 - 2² = 7940539 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 (7940549) 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, 12980 + ... + 13577.

It is an arithmetic number, because the mean of its divisors is an integer number (1115436).

Almost surely, 2^7940543 is an apocalyptic number.

7940543 is a deficient number, since it is larger than the sum of its proper divisors (982945).

7940543 is a wasteful number, since it uses less digits than its factorization.

7940543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26593.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 7940543 is about 2817.8969108184. The cubic root of 7940543 is about 199.5032924292.

The spelling of 7940543 in words is "seven million, nine hundred forty thousand, five hundred forty-three".