487405761 has 4 divisors (see below), whose sum is σ = 649874352. Its totient is φ = 324937172.

The previous prime is 487405757. The next prime is 487405769. The reversal of 487405761 is 167504784.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 487405761 - 2² = 487405757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487405769) 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 3 ways as a sum of consecutive naturals, for example, 81234291 + ... + 81234296.

It is an arithmetic number, because the mean of its divisors is an integer number (162468588).

Almost surely, 2^487405761 is an apocalyptic number.

It is an amenable number.

487405761 is a deficient number, since it is larger than the sum of its proper divisors (162468591).

487405761 is a wasteful number, since it uses less digits than its factorization.

487405761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162468590.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 487405761 is about 22077.2679695654. The cubic root of 487405761 is about 786.9797412264.

The spelling of 487405761 in words is "four hundred eighty-seven million, four hundred five thousand, seven hundred sixty-one".