487265721 has 8 divisors (see below), whose sum is σ = 651984480. Its totient is φ = 323695392.

The previous prime is 487265717. The next prime is 487265761. The reversal of 487265721 is 127562784.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 487265721 - 2² = 487265717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487265711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286116 + ... + 287813.

It is an arithmetic number, because the mean of its divisors is an integer number (81498060).

Almost surely, 2^487265721 is an apocalyptic number.

It is an amenable number.

487265721 is a deficient number, since it is larger than the sum of its proper divisors (164718759).

487265721 is a wasteful number, since it uses less digits than its factorization.

487265721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574215.

The product of its digits is 188160, while the sum is 42.

The square root of 487265721 is about 22074.0961536367. The cubic root of 487265721 is about 786.9043630997.

The spelling of 487265721 in words is "four hundred eighty-seven million, two hundred sixty-five thousand, seven hundred twenty-one".