487915636 has 24 divisors (see below), whose sum is σ = 926258760. Its totient is φ = 223544832.

The previous prime is 487915607. The next prime is 487915639. The reversal of 487915636 is 636519784.

It can be written as a sum of positive squares in 4 ways, for example, as 35928036 + 451987600 = 5994^2 + 21260^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 487915636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487915639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27121 + ... + 41368.

It is an arithmetic number, because the mean of its divisors is an integer number (38594115).

Almost surely, 2^487915636 is an apocalyptic number.

It is an amenable number.

487915636 is a deficient number, since it is larger than the sum of its proper divisors (438343124).

487915636 is a wasteful number, since it uses less digits than its factorization.

487915636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68643 (or 68641 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 49.

The square root of 487915636 is about 22088.8124624209. The cubic root of 487915636 is about 787.2540653380.

The spelling of 487915636 in words is "four hundred eighty-seven million, nine hundred fifteen thousand, six hundred thirty-six".