487992961 has 4 divisors (see below), whose sum is σ = 488040624. Its totient is φ = 487945300.

The previous prime is 487992943. The next prime is 487992991. The reversal of 487992961 is 169299784.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 487992961 - 2⁵ = 487992929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487992931) 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, 1495 + ... + 31276.

It is an arithmetic number, because the mean of its divisors is an integer number (122010156).

Almost surely, 2^487992961 is an apocalyptic number.

It is an amenable number.

487992961 is a deficient number, since it is larger than the sum of its proper divisors (47663).

487992961 is a wasteful number, since it uses less digits than its factorization.

487992961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47662.

The product of its digits is 1959552, while the sum is 55.

The square root of 487992961 is about 22090.5627135209. The cubic root of 487992961 is about 787.2956512192.

The spelling of 487992961 in words is "four hundred eighty-seven million, nine hundred ninety-two thousand, nine hundred sixty-one".