47806161 has 16 divisors (see below), whose sum is σ = 68819520. Its totient is φ = 29344320.

The previous prime is 47806151. The next prime is 47806169. The reversal of 47806161 is 16160874.

It is a happy number.

It is not a de Polignac number, because 47806161 - 2¹⁵ = 47773393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47806169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16650 + ... + 19308.

It is an arithmetic number, because the mean of its divisors is an integer number (4301220).

Almost surely, 2^47806161 is an apocalyptic number.

It is an amenable number.

47806161 is a deficient number, since it is larger than the sum of its proper divisors (21013359).

47806161 is a wasteful number, since it uses less digits than its factorization.

47806161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 47806161 is about 6914.1999537184. The cubic root of 47806161 is about 362.9342518416.

The spelling of 47806161 in words is "forty-seven million, eight hundred six thousand, one hundred sixty-one".