743087643 has 4 divisors (see below), whose sum is σ = 990783528. Its totient is φ = 495391760.

The previous prime is 743087641. The next prime is 743087647. The reversal of 743087643 is 346780347.

743087643 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.

It is a cyclic number.

It is not a de Polignac number, because 743087643 - 2¹ = 743087641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 743087595 and 743087604.

It is not an unprimeable number, because it can be changed into a prime (743087641) 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, 123847938 + ... + 123847943.

It is an arithmetic number, because the mean of its divisors is an integer number (247695882).

Almost surely, 2^743087643 is an apocalyptic number.

743087643 is a deficient number, since it is larger than the sum of its proper divisors (247695885).

743087643 is a wasteful number, since it uses less digits than its factorization.

743087643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247695884.

The product of its (nonzero) digits is 338688, while the sum is 42.

The square root of 743087643 is about 27259.6339483860. The cubic root of 743087643 is about 905.7604357122.

The spelling of 743087643 in words is "seven hundred forty-three million, eighty-seven thousand, six hundred forty-three".