487445 has 16 divisors (see below), whose sum is σ = 704640. Its totient is φ = 316224.

The previous prime is 487429. The next prime is 487447. The reversal of 487445 is 544784.

487445 = 63² + 64² + ... + 119².

It is a cyclic number.

It is not a de Polignac number, because 487445 - 2⁴ = 487429 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 487445.

It is not an unprimeable number, because it can be changed into a prime (487447) 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, 299 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (44040).

2⁴⁸⁷⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

487445 is a deficient number, since it is larger than the sum of its proper divisors (217195).

487445 is a wasteful number, since it uses less digits than its factorization.

487445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its digits is 17920, while the sum is 32.

The square root of 487445 is about 698.1726147594. The cubic root of 487445 is about 78.7000859476.

The spelling of 487445 in words is "four hundred eighty-seven thousand, four hundred forty-five".