8140743 has 28 divisors (see below), whose sum is σ = 13159720. Its totient is φ = 5003856.

The previous prime is 8140711. The next prime is 8140763. The reversal of 8140743 is 3470418.

It is not a de Polignac number, because 8140743 - 2⁵ = 8140711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

8140743 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8140763) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9048 + ... + 9906.

It is an arithmetic number, because the mean of its divisors is an integer number (469990).

Almost surely, 2^8140743 is an apocalyptic number.

8140743 is a deficient number, since it is larger than the sum of its proper divisors (5018977).

8140743 is an equidigital number, since it uses as much as digits as its factorization.

8140743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890 (or 875 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 8140743 is about 2853.1987312488. The cubic root of 8140743 is about 201.1660467957.

The spelling of 8140743 in words is "eight million, one hundred forty thousand, seven hundred forty-three".