471420661 has 16 divisors (see below), whose sum is σ = 485388288. Its totient is φ = 457740400.

The previous prime is 471420623. The next prime is 471420683. The reversal of 471420661 is 166024174.

It is a cyclic number.

It is not a de Polignac number, because 471420661 - 2¹¹ = 471418613 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 (471420601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2076630 + ... + 2076856.

It is an arithmetic number, because the mean of its divisors is an integer number (30336768).

Almost surely, 2^471420661 is an apocalyptic number.

It is an amenable number.

471420661 is a deficient number, since it is larger than the sum of its proper divisors (13967627).

471420661 is a wasteful number, since it uses less digits than its factorization.

471420661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 471420661 is about 21712.2237691122. The cubic root of 471420661 is about 778.2805984239.

The spelling of 471420661 in words is "four hundred seventy-one million, four hundred twenty thousand, six hundred sixty-one".