487961 has 4 divisors (see below), whose sum is σ = 495312. Its totient is φ = 480612.

The previous prime is 487943. The next prime is 487973. The reversal of 487961 is 169784.

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 487961 - 2⁶ = 487897 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 487961.

It is not an unprimeable number, because it can be changed into a prime (487261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3575 + ... + 3708.

It is an arithmetic number, because the mean of its divisors is an integer number (123828).

2⁴⁸⁷⁹⁶¹ is an apocalyptic number.

It is an amenable number.

487961 is a deficient number, since it is larger than the sum of its proper divisors (7351).

487961 is an equidigital number, since it uses as much as digits as its factorization.

487961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7350.

The product of its digits is 12096, while the sum is 35.

The square root of 487961 is about 698.5420531364. The cubic root of 487961 is about 78.7278462921.

The spelling of 487961 in words is "four hundred eighty-seven thousand, nine hundred sixty-one".