47073321 has 9 divisors (see below), whose sum is σ = 68024541. Its totient is φ = 31368492.

The previous prime is 47073319. The next prime is 47073343. The reversal of 47073321 is 12337074.

The square root of 47073321 is 6861.

It is a perfect power (a square), and thus also a powerful number.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 47073321 - 2¹ = 47073319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47073311) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 19440 + ... + 21726.

Almost surely, 2^47073321 is an apocalyptic number.

47073321 is the 6861-st square number.

47073321 is the 3431-st centered octagonal number.

It is an amenable number.

47073321 is a deficient number, since it is larger than the sum of its proper divisors (20951220).

47073321 is an frugal number, since it uses more digits than its factorization.

47073321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The cubic root of 47073321 is about 361.0701720287.

The spelling of 47073321 in words is "forty-seven million, seventy-three thousand, three hundred twenty-one".