747743047 has 4 divisors (see below), whose sum is σ = 773527320. Its totient is φ = 721958776.

The previous prime is 747742999. The next prime is 747743057. The reversal of 747743047 is 740347747.

747743047 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 747743047 - 2¹¹ = 747740999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 747742994 and 747743012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747743057) 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, 12892093 + ... + 12892150.

It is an arithmetic number, because the mean of its divisors is an integer number (193381830).

Almost surely, 2^747743047 is an apocalyptic number.

747743047 is a deficient number, since it is larger than the sum of its proper divisors (25784273).

747743047 is a wasteful number, since it uses less digits than its factorization.

747743047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25784272.

The product of its (nonzero) digits is 460992, while the sum is 43.

The square root of 747743047 is about 27344.8906927784. The cubic root of 747743047 is about 907.6480127507.

The spelling of 747743047 in words is "seven hundred forty-seven million, seven hundred forty-three thousand, forty-seven".