47321644 has 12 divisors (see below), whose sum is σ = 83667304. Its totient is φ = 23416704.

The previous prime is 47321641. The next prime is 47321653. The reversal of 47321644 is 44612374.

It is not an unprimeable number, because it can be changed into a prime (47321641) 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, 60594 + ... + 61369.

Almost surely, 2^47321644 is an apocalyptic number.

It is an amenable number.

47321644 is a deficient number, since it is larger than the sum of its proper divisors (36345660).

47321644 is a wasteful number, since it uses less digits than its factorization.

47321644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122064 (or 122062 counting only the distinct ones).

The product of its digits is 16128, while the sum is 31.

The square root of 47321644 is about 6879.0729026519. The cubic root of 47321644 is about 361.7039692908.

The spelling of 47321644 in words is "forty-seven million, three hundred twenty-one thousand, six hundred forty-four".