47163661 has 8 divisors (see below), whose sum is σ = 50013504. Its totient is φ = 44322240.

The previous prime is 47163619. The next prime is 47163691. The reversal of 47163661 is 16636174.

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 47163661 - 2⁷ = 47163533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47163691) 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, 12306 + ... + 15676.

It is an arithmetic number, because the mean of its divisors is an integer number (6251688).

Almost surely, 2^47163661 is an apocalyptic number.

It is an amenable number.

47163661 is a deficient number, since it is larger than the sum of its proper divisors (2849843).

47163661 is a wasteful number, since it uses less digits than its factorization.

47163661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211.

The product of its digits is 18144, while the sum is 34.

The square root of 47163661 is about 6867.5804327288. The cubic root of 47163661 is about 361.3010050786.

The spelling of 47163661 in words is "forty-seven million, one hundred sixty-three thousand, six hundred sixty-one".