747385839 has 8 divisors (see below), whose sum is σ = 1107238320. Its totient is φ = 498257208.

The previous prime is 747385813. The next prime is 747385901. The reversal of 747385839 is 938583747.

It is not a de Polignac number, because 747385839 - 2¹⁵ = 747353071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747385039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13840452 + ... + 13840505.

It is an arithmetic number, because the mean of its divisors is an integer number (138404790).

Almost surely, 2^747385839 is an apocalyptic number.

747385839 is a deficient number, since it is larger than the sum of its proper divisors (359852481).

747385839 is a wasteful number, since it uses less digits than its factorization.

747385839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27680966 (or 27680960 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 747385839 is about 27338.3583815854. The cubic root of 747385839 is about 907.5034574009.

The spelling of 747385839 in words is "seven hundred forty-seven million, three hundred eighty-five thousand, eight hundred thirty-nine".