486271721 has 4 divisors (see below), whose sum is σ = 523677252. Its totient is φ = 448866192.

The previous prime is 486271717. The next prime is 486271759. The reversal of 486271721 is 127172684.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47955625 + 438316096 = 6925^2 + 20936^2 .

It is a cyclic number.

It is not a de Polignac number, because 486271721 - 2² = 486271717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (486271711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18702746 + ... + 18702771.

It is an arithmetic number, because the mean of its divisors is an integer number (130919313).

Almost surely, 2^486271721 is an apocalyptic number.

It is an amenable number.

486271721 is a deficient number, since it is larger than the sum of its proper divisors (37405531).

486271721 is a wasteful number, since it uses less digits than its factorization.

486271721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37405530.

The product of its digits is 37632, while the sum is 38.

The square root of 486271721 is about 22051.5695813246. The cubic root of 486271721 is about 786.3689157525.

The spelling of 486271721 in words is "four hundred eighty-six million, two hundred seventy-one thousand, seven hundred twenty-one".