47769409 has 8 divisors (see below), whose sum is σ = 50256000. Its totient is φ = 45338832.

The previous prime is 47769391. The next prime is 47769433. The reversal of 47769409 is 90496774.

47769409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47769409 - 2²³ = 39380801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47769209) 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 7 ways as a sum of consecutive naturals, for example, 12249 + ... + 15670.

It is an arithmetic number, because the mean of its divisors is an integer number (6282000).

Almost surely, 2^47769409 is an apocalyptic number.

It is an amenable number.

47769409 is a deficient number, since it is larger than the sum of its proper divisors (2486591).

47769409 is a wasteful number, since it uses less digits than its factorization.

47769409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28007.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 47769409 is about 6911.5417238124. The cubic root of 47769409 is about 362.8412235309.

The spelling of 47769409 in words is "forty-seven million, seven hundred sixty-nine thousand, four hundred nine".