487149471 has 20 divisors (see below), whose sum is σ = 736938400. Its totient is φ = 320651136.

The previous prime is 487149463. The next prime is 487149497. The reversal of 487149471 is 174941784.

It is a happy number.

487149471 is a `hidden beast` number, since 487 + 14 + 94 + 71 = 666.

It is not a de Polignac number, because 487149471 - 2³ = 487149463 is a prime.

It is a super-3 number, since 3×487149471³ (a number of 27 digits) contains 333 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 (487149431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31666 + ... + 44463.

It is an arithmetic number, because the mean of its divisors is an integer number (36846920).

Almost surely, 2^487149471 is an apocalyptic number.

487149471 is a deficient number, since it is larger than the sum of its proper divisors (249788929).

487149471 is an equidigital number, since it uses as much as digits as its factorization.

487149471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76220 (or 76211 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 487149471 is about 22071.4628196683. The cubic root of 487149471 is about 786.8417792405.

It can be divided in two parts, 48714 and 9471, that added together give a palindrome (58185).

The spelling of 487149471 in words is "four hundred eighty-seven million, one hundred forty-nine thousand, four hundred seventy-one".