487703057 has 4 divisors (see below), whose sum is σ = 487776996. Its totient is φ = 487629120.

The previous prime is 487703053. The next prime is 487703071. The reversal of 487703057 is 750307784.

It is a Cunningham number, because it is equal to 22084²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 132496 + 487570561 = 364^2 + 22081^2 .

It is a cyclic number.

It is not a de Polignac number, because 487703057 - 2² = 487703053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487703053) 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 3 ways as a sum of consecutive naturals, for example, 25988 + ... + 40629.

It is an arithmetic number, because the mean of its divisors is an integer number (121944249).

Almost surely, 2^487703057 is an apocalyptic number.

It is an amenable number.

487703057 is a deficient number, since it is larger than the sum of its proper divisors (73939).

487703057 is an equidigital number, since it uses as much as digits as its factorization.

487703057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73938.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 487703057 is about 22084.0000226408. Note that the first 4 decimals coincide. The cubic root of 487703057 is about 787.1397163398.

The spelling of 487703057 in words is "four hundred eighty-seven million, seven hundred three thousand, fifty-seven".