471646893 has 4 divisors (see below), whose sum is σ = 628862528. Its totient is φ = 314431260.

The previous prime is 471646873. The next prime is 471646897. The reversal of 471646893 is 398646174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 471646893 - 2⁶ = 471646829 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 (471646897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78607813 + ... + 78607818.

It is an arithmetic number, because the mean of its divisors is an integer number (157215632).

Almost surely, 2^471646893 is an apocalyptic number.

It is an amenable number.

471646893 is a deficient number, since it is larger than the sum of its proper divisors (157215635).

471646893 is a wasteful number, since it uses less digits than its factorization.

471646893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157215634.

The product of its digits is 870912, while the sum is 48.

The square root of 471646893 is about 21717.4329284103. The cubic root of 471646893 is about 778.4050759399.

The spelling of 471646893 in words is "four hundred seventy-one million, six hundred forty-six thousand, eight hundred ninety-three".