487705849 has 4 divisors (see below), whose sum is σ = 493185780. Its totient is φ = 482225920.

The previous prime is 487705837. The next prime is 487705879. The reversal of 487705849 is 948507784.

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 31584400 + 456121449 = 5620^2 + 21357^2 .

It is a cyclic number.

It is not a de Polignac number, because 487705849 - 2¹³ = 487697657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 487705796 and 487705805.

It is not an unprimeable number, because it can be changed into a prime (487705879) 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, 2739832 + ... + 2740009.

It is an arithmetic number, because the mean of its divisors is an integer number (123296445).

Almost surely, 2^487705849 is an apocalyptic number.

It is an amenable number.

487705849 is a deficient number, since it is larger than the sum of its proper divisors (5479931).

487705849 is an equidigital number, since it uses as much as digits as its factorization.

487705849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5479930.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 487705849 is about 22084.0632357363. The cubic root of 487705849 is about 787.1412184081.

The spelling of 487705849 in words is "four hundred eighty-seven million, seven hundred five thousand, eight hundred forty-nine".