487739 has 4 divisors (see below), whose sum is σ = 557424. Its totient is φ = 418056.

The previous prime is 487733. The next prime is 487741. The reversal of 487739 is 937784.

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

It is a cyclic number.

It is not a de Polignac number, because 487739 - 2¹² = 483643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487733) 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, 34832 + ... + 34845.

It is an arithmetic number, because the mean of its divisors is an integer number (139356).

2⁴⁸⁷⁷³⁹ is an apocalyptic number.

487739 is a deficient number, since it is larger than the sum of its proper divisors (69685).

487739 is an equidigital number, since it uses as much as digits as its factorization.

487739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69684.

The product of its digits is 42336, while the sum is 38.

The square root of 487739 is about 698.3831326715. The cubic root of 487739 is about 78.7159052879.

The spelling of 487739 in words is "four hundred eighty-seven thousand, seven hundred thirty-nine".