47723161 has 8 divisors (see below), whose sum is σ = 48734784. Its totient is φ = 46715760.

The previous prime is 47723149. The next prime is 47723201. The reversal of 47723161 is 16132774.

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

It is a cyclic number.

It is not a de Polignac number, because 47723161 - 2¹⁷ = 47592089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47720161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32730 + ... + 34156.

It is an arithmetic number, because the mean of its divisors is an integer number (6091848).

Almost surely, 2^47723161 is an apocalyptic number.

It is an amenable number.

47723161 is a deficient number, since it is larger than the sum of its proper divisors (1011623).

47723161 is a wasteful number, since it uses less digits than its factorization.

47723161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111.

The product of its digits is 7056, while the sum is 31.

The square root of 47723161 is about 6908.1952056959. The cubic root of 47723161 is about 362.7240906937.

The spelling of 47723161 in words is "forty-seven million, seven hundred twenty-three thousand, one hundred sixty-one".