47721673 has 12 divisors (see below), whose sum is σ = 50737008. Its totient is φ = 44877240.

The previous prime is 47721671. The next prime is 47721689. The reversal of 47721673 is 37612774.

It is not a de Polignac number, because 47721673 - 2¹ = 47721671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47721671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58438 + ... + 59248.

It is an arithmetic number, because the mean of its divisors is an integer number (4228084).

Almost surely, 2^47721673 is an apocalyptic number.

It is an amenable number.

47721673 is a deficient number, since it is larger than the sum of its proper divisors (3015335).

47721673 is a wasteful number, since it uses less digits than its factorization.

47721673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 993 counting only the distinct ones).

The product of its digits is 49392, while the sum is 37.

The square root of 47721673 is about 6908.0875066837. The cubic root of 47721673 is about 362.7203207628.

The spelling of 47721673 in words is "forty-seven million, seven hundred twenty-one thousand, six hundred seventy-three".