471087721 has 8 divisors (see below), whose sum is σ = 518120064. Its totient is φ = 425597520.

The previous prime is 471087719. The next prime is 471087733. The reversal of 471087721 is 127780174.

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

It is a cyclic number.

It is not a de Polignac number, because 471087721 - 2¹ = 471087719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (471087751) 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 7 ways as a sum of consecutive naturals, for example, 384895 + ... + 386116.

It is an arithmetic number, because the mean of its divisors is an integer number (64765008).

Almost surely, 2^471087721 is an apocalyptic number.

It is an amenable number.

471087721 is a deficient number, since it is larger than the sum of its proper divisors (47032343).

471087721 is a wasteful number, since it uses less digits than its factorization.

471087721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771071.

The product of its (nonzero) digits is 21952, while the sum is 37.

The square root of 471087721 is about 21704.5553052810. Note that the first 3 decimals coincide. The cubic root of 471087721 is about 778.0973355132.

The spelling of 471087721 in words is "four hundred seventy-one million, eighty-seven thousand, seven hundred twenty-one".