471221717 has 8 divisors (see below), whose sum is σ = 497360160. Its totient is φ = 445217040.

The previous prime is 471221713. The next prime is 471221741. The reversal of 471221717 is 717122174.

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 471221717 - 2² = 471221713 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471221713) 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, 26159 + ... + 40332.

It is an arithmetic number, because the mean of its divisors is an integer number (62170020).

Almost surely, 2^471221717 is an apocalyptic number.

It is an amenable number.

471221717 is a deficient number, since it is larger than the sum of its proper divisors (26138443).

471221717 is a wasteful number, since it uses less digits than its factorization.

471221717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66883.

The product of its digits is 5488, while the sum is 32.

The square root of 471221717 is about 21707.6419032561. The cubic root of 471221717 is about 778.1711024162.

The spelling of 471221717 in words is "four hundred seventy-one million, two hundred twenty-one thousand, seven hundred seventeen".