840760743 has 16 divisors (see below), whose sum is σ = 1142856416. Its totient is φ = 549642240.

The previous prime is 840760733. The next prime is 840760777. The reversal of 840760743 is 347067048.

It is a happy number.

It is not a de Polignac number, because 840760743 - 2⁴ = 840760727 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840760733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54855 + ... + 68487.

It is an arithmetic number, because the mean of its divisors is an integer number (71428526).

Almost surely, 2^840760743 is an apocalyptic number.

840760743 is a deficient number, since it is larger than the sum of its proper divisors (302095673).

840760743 is a wasteful number, since it uses less digits than its factorization.

840760743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14034.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 840760743 is about 28995.8745858786. The cubic root of 840760743 is about 943.8235476328.

The spelling of 840760743 in words is "eight hundred forty million, seven hundred sixty thousand, seven hundred forty-three".