486911721 has 4 divisors (see below), whose sum is σ = 649215632. Its totient is φ = 324607812.

The previous prime is 486911717. The next prime is 486911741. The reversal of 486911721 is 127119684.

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 486911721 - 2² = 486911717 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 486911721.

It is not an unprimeable number, because it can be changed into a prime (486911741) 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, 81151951 + ... + 81151956.

It is an arithmetic number, because the mean of its divisors is an integer number (162303908).

Almost surely, 2^486911721 is an apocalyptic number.

It is an amenable number.

486911721 is a deficient number, since it is larger than the sum of its proper divisors (162303911).

486911721 is a wasteful number, since it uses less digits than its factorization.

486911721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162303910.

The product of its digits is 24192, while the sum is 39.

The square root of 486911721 is about 22066.0762483954. The cubic root of 486911721 is about 786.7137541438.

The spelling of 486911721 in words is "four hundred eighty-six million, nine hundred eleven thousand, seven hundred twenty-one".