4739909409 has 27 divisors (see below), whose sum is σ = 6994306137. Its totient is φ = 3093158016.

The previous prime is 4739909371. The next prime is 4739909411. The reversal of 4739909409 is 9049099374.

The square root of 4739909409 is 68847.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 216001809 + 4523907600 = 14697^2 + 67260^2 .

It is not a de Polignac number, because 4739909409 - 2²⁷ = 4605691681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4739908409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10946457 + ... + 10946889.

Almost surely, 2^4739909409 is an apocalyptic number.

4739909409 is the 68847-th square number.

4739909409 is the 34424-th centered octagonal number.

It is an amenable number.

4739909409 is a deficient number, since it is larger than the sum of its proper divisors (2254396728).

4739909409 is an frugal number, since it uses more digits than its factorization.

4739909409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 489 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The cubic root of 4739909409 is about 1679.7965325441.

The spelling of 4739909409 in words is "four billion, seven hundred thirty-nine million, nine hundred nine thousand, four hundred nine".