487763661 has 16 divisors (see below), whose sum is σ = 810828288. Its totient is φ = 253383600.

The previous prime is 487763659. The next prime is 487763669. The reversal of 487763661 is 166367784.

It is not a de Polignac number, because 487763661 - 2¹ = 487763659 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 487763661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487763669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1055535 + ... + 1055996.

It is an arithmetic number, because the mean of its divisors is an integer number (50676768).

Almost surely, 2^487763661 is an apocalyptic number.

It is an amenable number.

487763661 is a deficient number, since it is larger than the sum of its proper divisors (323064627).

487763661 is a wasteful number, since it uses less digits than its factorization.

487763661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111552.

The product of its digits is 1016064, while the sum is 48.

The square root of 487763661 is about 22085.3721046307. The cubic root of 487763661 is about 787.1723194022.

The spelling of 487763661 in words is "four hundred eighty-seven million, seven hundred sixty-three thousand, six hundred sixty-one".