47229847 has 8 divisors (see below), whose sum is σ = 54216576. Its totient is φ = 40303032.

The previous prime is 47229829. The next prime is 47229857. The reversal of 47229847 is 74892274.

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

It is not a de Polignac number, because 47229847 - 2¹⁵ = 47197079 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 (47229817) 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, 13273 + ... + 16450.

It is an arithmetic number, because the mean of its divisors is an integer number (6777072).

Almost surely, 2^47229847 is an apocalyptic number.

47229847 is a deficient number, since it is larger than the sum of its proper divisors (6986729).

47229847 is a wasteful number, since it uses less digits than its factorization.

47229847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29957.

The product of its digits is 225792, while the sum is 43.

The square root of 47229847 is about 6872.3974710431. The cubic root of 47229847 is about 361.4699338017.

The spelling of 47229847 in words is "forty-seven million, two hundred twenty-nine thousand, eight hundred forty-seven".