471558661 has 8 divisors (see below), whose sum is σ = 550391040. Its totient is φ = 395593008.

The previous prime is 471558643. The next prime is 471558707. The reversal of 471558661 is 166855174.

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 471558661 - 2⁵ = 471558629 is a prime.

It is a super-2 number, since 2×471558661² = 444735141528225842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471558361) 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, 716326 + ... + 716983.

It is an arithmetic number, because the mean of its divisors is an integer number (68798880).

Almost surely, 2^471558661 is an apocalyptic number.

It is an amenable number.

471558661 is a deficient number, since it is larger than the sum of its proper divisors (78832379).

471558661 is a wasteful number, since it uses less digits than its factorization.

471558661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433363.

The product of its digits is 201600, while the sum is 43.

The square root of 471558661 is about 21715.4014699245. The cubic root of 471558661 is about 778.3565336082.

The spelling of 471558661 in words is "four hundred seventy-one million, five hundred fifty-eight thousand, six hundred sixty-one".