47609091 has 12 divisors (see below), whose sum is σ = 68913000. Its totient is φ = 31672800.

The previous prime is 47609071. The next prime is 47609099. The reversal of 47609091 is 19090674.

47609091 is a `hidden beast` number, since 47 + 609 + 0 + 9 + 1 = 666.

47609091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47609091 - 2⁵ = 47609059 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (47609099) 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 11 ways as a sum of consecutive naturals, for example, 810 + ... + 9791.

It is an arithmetic number, because the mean of its divisors is an integer number (5742750).

Almost surely, 2^47609091 is an apocalyptic number.

47609091 is a deficient number, since it is larger than the sum of its proper divisors (21303909).

47609091 is a wasteful number, since it uses less digits than its factorization.

47609091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11106 (or 11103 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 47609091 is about 6899.9341301204. The cubic root of 47609091 is about 362.4348604318.

The spelling of 47609091 in words is "forty-seven million, six hundred nine thousand, ninety-one".