8491490743 has 4 divisors (see below), whose sum is σ = 8607812608. Its totient is φ = 8375168880.

The previous prime is 8491490717. The next prime is 8491490869. The reversal of 8491490743 is 3470941948.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8491490743 - 2¹⁷ = 8491359671 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 (8401490743) 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, 58160823 + ... + 58160968.

It is an arithmetic number, because the mean of its divisors is an integer number (2151953152).

Almost surely, 2^8491490743 is an apocalyptic number.

8491490743 is a deficient number, since it is larger than the sum of its proper divisors (116321865).

8491490743 is a wasteful number, since it uses less digits than its factorization.

8491490743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116321864.

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 8491490743 is about 92149.2850921807. The cubic root of 8491490743 is about 2040.1463068687.

The spelling of 8491490743 in words is "eight billion, four hundred ninety-one million, four hundred ninety thousand, seven hundred forty-three".