487331172 has 18 divisors (see below), whose sum is σ = 1231864998. Its totient is φ = 162443712.

The previous prime is 487331123. The next prime is 487331183. The reversal of 487331172 is 271133784.

487331172 is a `hidden beast` number, since 487 + 3 + 3 + 1 + 172 = 666.

It can be written as a sum of positive squares in only one way, i.e., 487261476 + 69696 = 22074^2 + 264^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 13536977 = 487331172 / (4 + 8 + 7 + 3 + 3 + 1 + 1 + 7 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6768453 + ... + 6768524.

Almost surely, 2^487331172 is an apocalyptic number.

It is an amenable number.

487331172 is an abundant number, since it is smaller than the sum of its proper divisors (744533826).

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

487331172 is a wasteful number, since it uses less digits than its factorization.

487331172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13536987 (or 13536982 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 487331172 is about 22075.5786334130. The cubic root of 487331172 is about 786.9395946441.

The spelling of 487331172 in words is "four hundred eighty-seven million, three hundred thirty-one thousand, one hundred seventy-two".