47732647 has 4 divisors (see below), whose sum is σ = 47779200. Its totient is φ = 47686096.

The previous prime is 47732611. The next prime is 47732687. The reversal of 47732647 is 74623774.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74623774 = 2 ⋅37311887.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47732647 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 (47732687) 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, 21703 + ... + 23800.

It is an arithmetic number, because the mean of its divisors is an integer number (11944800).

Almost surely, 2^47732647 is an apocalyptic number.

47732647 is a deficient number, since it is larger than the sum of its proper divisors (46553).

47732647 is a wasteful number, since it uses less digits than its factorization.

47732647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46552.

The product of its digits is 197568, while the sum is 40.

The square root of 47732647 is about 6908.8817474321. The cubic root of 47732647 is about 362.7481221611.

It can be divided in two parts, 477 and 32647, that added together give a square (33124 = 182²).

The spelling of 47732647 in words is "forty-seven million, seven hundred thirty-two thousand, six hundred forty-seven".