487071621 has 24 divisors (see below), whose sum is σ = 751223616. Its totient is φ = 303367680.

The previous prime is 487071587. The next prime is 487071649. The reversal of 487071621 is 126170784.

It is not a de Polignac number, because 487071621 - 2¹³ = 487063429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487071671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18460 + ... + 36261.

It is an arithmetic number, because the mean of its divisors is an integer number (31300984).

Almost surely, 2^487071621 is an apocalyptic number.

It is an amenable number.

487071621 is a deficient number, since it is larger than the sum of its proper divisors (264151995).

487071621 is a wasteful number, since it uses less digits than its factorization.

487071621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54793 (or 54790 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 487071621 is about 22069.6991597076. The cubic root of 487071621 is about 786.7998626765.

The spelling of 487071621 in words is "four hundred eighty-seven million, seventy-one thousand, six hundred twenty-one".