471991512 has 32 divisors (see below), whose sum is σ = 1185980400. Its totient is φ = 156530304.

The previous prime is 471991489. The next prime is 471991517. The reversal of 471991512 is 215199174.

It is a super-2 number, since 2×471991512² = 445551974800092288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471991517) 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, 45187 + ... + 54642.

Almost surely, 2^471991512 is an apocalyptic number.

It is an amenable number.

471991512 is an abundant number, since it is smaller than the sum of its proper divisors (713988888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

471991512 is a wasteful number, since it uses less digits than its factorization.

471991512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100035 (or 100031 counting only the distinct ones).

The product of its digits is 22680, while the sum is 39.

The square root of 471991512 is about 21725.3656355883. The cubic root of 471991512 is about 778.5946159498.

The spelling of 471991512 in words is "four hundred seventy-one million, nine hundred ninety-one thousand, five hundred twelve".