47147644 has 6 divisors (see below), whose sum is σ = 82508384. Its totient is φ = 23573820.

The previous prime is 47147641. The next prime is 47147671. The reversal of 47147644 is 44674174.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47147641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5893452 + ... + 5893459.

Almost surely, 2^47147644 is an apocalyptic number.

It is an amenable number.

47147644 is a deficient number, since it is larger than the sum of its proper divisors (35360740).

47147644 is a wasteful number, since it uses less digits than its factorization.

47147644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11786915 (or 11786913 counting only the distinct ones).

The product of its digits is 75264, while the sum is 37.

The square root of 47147644 is about 6866.4142024786. The cubic root of 47147644 is about 361.2601006104.

The spelling of 47147644 in words is "forty-seven million, one hundred forty-seven thousand, six hundred forty-four".