747436689 has 6 divisors (see below), whose sum is σ = 1079630786. Its totient is φ = 498291120.

The previous prime is 747436673. The next prime is 747436717. The reversal of 747436689 is 986634747.

It is a happy number.

747436689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 556582464 + 190854225 = 23592^2 + 13815^2 .

It is not a de Polignac number, because 747436689 - 2⁴ = 747436673 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (747436609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41524252 + ... + 41524269.

Almost surely, 2^747436689 is an apocalyptic number.

It is an amenable number.

747436689 is a deficient number, since it is larger than the sum of its proper divisors (332194097).

747436689 is a wasteful number, since it uses less digits than its factorization.

747436689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83048527 (or 83048524 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The square root of 747436689 is about 27339.2883777175. The cubic root of 747436689 is about 907.5240382495.

The spelling of 747436689 in words is "seven hundred forty-seven million, four hundred thirty-six thousand, six hundred eighty-nine".