47217732 has 24 divisors (see below), whose sum is σ = 112863072. Its totient is φ = 15355200.

The previous prime is 47217727. The next prime is 47217761. The reversal of 47217732 is 23771274.

It is a junction number, because it is equal to n+sod(n) for n = 47217693 and 47217702.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47494 + ... + 48477.

It is an arithmetic number, because the mean of its divisors is an integer number (4702628).

Almost surely, 2^47217732 is an apocalyptic number.

It is an amenable number.

47217732 is an abundant number, since it is smaller than the sum of its proper divisors (65645340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47217732 is a wasteful number, since it uses less digits than its factorization.

47217732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96019 (or 96017 counting only the distinct ones).

The product of its digits is 16464, while the sum is 33.

The square root of 47217732 is about 6871.5159899399. The cubic root of 47217732 is about 361.4390240908.

The spelling of 47217732 in words is "forty-seven million, two hundred seventeen thousand, seven hundred thirty-two".