47706161 has 4 divisors (see below), whose sum is σ = 48514800. Its totient is φ = 46897524.

The previous prime is 47706151. The next prime is 47706173. The reversal of 47706161 is 16160774.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47706161 - 2¹⁸ = 47444017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47706101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404231 + ... + 404348.

It is an arithmetic number, because the mean of its divisors is an integer number (12128700).

Almost surely, 2^47706161 is an apocalyptic number.

It is an amenable number.

47706161 is a deficient number, since it is larger than the sum of its proper divisors (808639).

47706161 is an equidigital number, since it uses as much as digits as its factorization.

47706161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808638.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 47706161 is about 6906.9646734293. The cubic root of 47706161 is about 362.6810155792.

The spelling of 47706161 in words is "forty-seven million, seven hundred six thousand, one hundred sixty-one".