47744321 has 8 divisors (see below), whose sum is σ = 50422080. Its totient is φ = 45083088.

The previous prime is 47744303. The next prime is 47744351. The reversal of 47744321 is 12344774.

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

It is a cyclic number.

It is not a de Polignac number, because 47744321 - 2¹⁴ = 47727937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47744351) 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, 2060 + ... + 9986.

It is an arithmetic number, because the mean of its divisors is an integer number (6302760).

Almost surely, 2^47744321 is an apocalyptic number.

It is an amenable number.

47744321 is a deficient number, since it is larger than the sum of its proper divisors (2677759).

47744321 is a wasteful number, since it uses less digits than its factorization.

47744321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8263.

The product of its digits is 18816, while the sum is 32.

The square root of 47744321 is about 6909.7265503057. The cubic root of 47744321 is about 362.7776922539. Note that the first 3 decimals are identical.

The spelling of 47744321 in words is "forty-seven million, seven hundred forty-four thousand, three hundred twenty-one".