487749 has 16 divisors (see below), whose sum is σ = 704000. Its totient is φ = 299376.

The previous prime is 487741. The next prime is 487757. The reversal of 487749 is 947784.

It is an interprime number because it is at equal distance from previous prime (487741) and next prime (487757).

It is not a de Polignac number, because 487749 - 2³ = 487741 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2352 + ... + 2550.

It is an arithmetic number, because the mean of its divisors is an integer number (44000).

2⁴⁸⁷⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

487749 is a deficient number, since it is larger than the sum of its proper divisors (216251).

487749 is a wasteful number, since it uses less digits than its factorization.

487749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

The product of its digits is 56448, while the sum is 39.

The square root of 487749 is about 698.3902920287. The cubic root of 487749 is about 78.7164432489.

The spelling of 487749 in words is "four hundred eighty-seven thousand, seven hundred forty-nine".