48476721 has 4 divisors (see below), whose sum is σ = 64635632. Its totient is φ = 32317812.

The previous prime is 48476717. The next prime is 48476723. The reversal of 48476721 is 12767484.

48476721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 48476721 - 2² = 48476717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 48476721.

It is not an unprimeable number, because it can be changed into a prime (48476723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8079451 + ... + 8079456.

It is an arithmetic number, because the mean of its divisors is an integer number (16158908).

Almost surely, 2^48476721 is an apocalyptic number.

It is an amenable number.

48476721 is a deficient number, since it is larger than the sum of its proper divisors (16158911).

48476721 is a wasteful number, since it uses less digits than its factorization.

48476721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16158910.

The product of its digits is 75264, while the sum is 39.

The square root of 48476721 is about 6962.5226031949. The cubic root of 48476721 is about 364.6232955931.

The spelling of 48476721 in words is "forty-eight million, four hundred seventy-six thousand, seven hundred twenty-one".