747434889 has 6 divisors (see below), whose sum is σ = 1079628186. Its totient is φ = 498289920.

The previous prime is 747434881. The next prime is 747434921. The reversal of 747434889 is 988434747.

747434889 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., 733055625 + 14379264 = 27075^2 + 3792^2 .

It is not a de Polignac number, because 747434889 - 2³ = 747434881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (747434881) 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, 41524152 + ... + 41524169.

It is an arithmetic number, because the mean of its divisors is an integer number (179938031).

Almost surely, 2^747434889 is an apocalyptic number.

It is an amenable number.

747434889 is a deficient number, since it is larger than the sum of its proper divisors (332193297).

747434889 is a wasteful number, since it uses less digits than its factorization.

747434889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83048327 (or 83048324 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 54.

The square root of 747434889 is about 27339.2554580405. The cubic root of 747434889 is about 907.5233097398.

The spelling of 747434889 in words is "seven hundred forty-seven million, four hundred thirty-four thousand, eight hundred eighty-nine".