487443487 has 4 divisors (see below), whose sum is σ = 488750680. Its totient is φ = 486136296.

The previous prime is 487443469. The next prime is 487443503. The reversal of 487443487 is 784344784.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487443487 is a prime.

It is a super-3 number, since 3×487443487³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 487443487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487443457) 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, 653037 + ... + 653782.

It is an arithmetic number, because the mean of its divisors is an integer number (122187670).

Almost surely, 2^487443487 is an apocalyptic number.

487443487 is a deficient number, since it is larger than the sum of its proper divisors (1307193).

487443487 is a wasteful number, since it uses less digits than its factorization.

487443487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307192.

The product of its digits is 2408448, while the sum is 49.

The square root of 487443487 is about 22078.1223612879. The cubic root of 487443487 is about 787.0000452073. Note that the first 4 decimals are identical.

The spelling of 487443487 in words is "four hundred eighty-seven million, four hundred forty-three thousand, four hundred eighty-seven".