47946321 has 6 divisors (see below), whose sum is σ = 69255810. Its totient is φ = 31964208.

The previous prime is 47946319. The next prime is 47946331. The reversal of 47946321 is 12364974.

It can be written as a sum of positive squares in only one way, i.e., 25250625 + 22695696 = 5025^2 + 4764^2 .

It is not a de Polignac number, because 47946321 - 2¹ = 47946319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47946331) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2663676 + ... + 2663693.

It is an arithmetic number, because the mean of its divisors is an integer number (11542635).

Almost surely, 2^47946321 is an apocalyptic number.

It is an amenable number.

47946321 is a deficient number, since it is larger than the sum of its proper divisors (21309489).

47946321 is a wasteful number, since it uses less digits than its factorization.

47946321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327375 (or 5327372 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 47946321 is about 6924.3281984608. The cubic root of 47946321 is about 363.2885941228.

The spelling of 47946321 in words is "forty-seven million, nine hundred forty-six thousand, three hundred twenty-one".