743688243 has 8 divisors (see below), whose sum is σ = 1101760400. Its totient is φ = 495792144.

The previous prime is 743688229. The next prime is 743688247. The reversal of 743688243 is 342886347.

It is not a de Polignac number, because 743688243 - 2¹² = 743684147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (743688247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13771978 + ... + 13772031.

It is an arithmetic number, because the mean of its divisors is an integer number (137720050).

Almost surely, 2^743688243 is an apocalyptic number.

743688243 is a deficient number, since it is larger than the sum of its proper divisors (358072157).

743688243 is a wasteful number, since it uses less digits than its factorization.

743688243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27544018 (or 27544012 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The square root of 743688243 is about 27270.6480121027. The cubic root of 743688243 is about 906.0043967156.

The spelling of 743688243 in words is "seven hundred forty-three million, six hundred eighty-eight thousand, two hundred forty-three".