743421263 has 4 divisors (see below), whose sum is σ = 800607528. Its totient is φ = 686235000.

The previous prime is 743421251. The next prime is 743421313. The reversal of 743421263 is 362124347.

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 743421263 - 2²⁴ = 726644047 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 (743421233) 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, 28593113 + ... + 28593138.

It is an arithmetic number, because the mean of its divisors is an integer number (200151882).

Almost surely, 2^743421263 is an apocalyptic number.

743421263 is a deficient number, since it is larger than the sum of its proper divisors (57186265).

743421263 is a wasteful number, since it uses less digits than its factorization.

743421263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57186264.

The product of its digits is 24192, while the sum is 32.

The square root of 743421263 is about 27265.7525661772. The cubic root of 743421263 is about 905.8959668698.

The spelling of 743421263 in words is "seven hundred forty-three million, four hundred twenty-one thousand, two hundred sixty-three".