8740043957 has 4 divisors (see below), whose sum is σ = 8740471596. Its totient is φ = 8739616320.

The previous prime is 8740043951. The next prime is 8740043959. The reversal of 8740043957 is 7593400478.

8740043957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7593400478 = 2 ⋅3796700239.

It can be written as a sum of positive squares in 2 ways, for example, as 3503929636 + 5236114321 = 59194^2 + 72361^2 .

It is a cyclic number.

It is not a de Polignac number, because 8740043957 - 2⁸ = 8740043701 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 (8740043951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181538 + ... + 224579.

It is an arithmetic number, because the mean of its divisors is an integer number (2185117899).

Almost surely, 2^8740043957 is an apocalyptic number.

It is an amenable number.

8740043957 is a deficient number, since it is larger than the sum of its proper divisors (427639).

8740043957 is a wasteful number, since it uses less digits than its factorization.

8740043957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427638.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 8740043957 is about 93488.2022342926. The cubic root of 8740043957 is about 2059.8607972201.

The spelling of 8740043957 in words is "eight billion, seven hundred forty million, forty-three thousand, nine hundred fifty-seven".