487290321 has 48 divisors (see below), whose sum is σ = 862842240. Its totient is φ = 258785280.

The previous prime is 487290299. The next prime is 487290343. The reversal of 487290321 is 123092784.

487290321 is a `hidden beast` number, since 48 + 7 + 290 + 321 = 666.

It is an interprime number because it is at equal distance from previous prime (487290299) and next prime (487290343).

It is not a de Polignac number, because 487290321 - 2¹¹ = 487288273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487290421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59601 + ... + 67281.

It is an arithmetic number, because the mean of its divisors is an integer number (17975880).

Almost surely, 2^487290321 is an apocalyptic number.

It is an amenable number.

487290321 is a deficient number, since it is larger than the sum of its proper divisors (375551919).

487290321 is a wasteful number, since it uses less digits than its factorization.

487290321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7766 (or 7763 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 487290321 is about 22074.6533608118. The cubic root of 487290321 is about 786.9176053758.

The spelling of 487290321 in words is "four hundred eighty-seven million, two hundred ninety thousand, three hundred twenty-one".