487908417 has 4 divisors (see below), whose sum is σ = 650544560. Its totient is φ = 325272276.

The previous prime is 487908373. The next prime is 487908431. The reversal of 487908417 is 714809784.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 487908417 - 2¹⁰ = 487907393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487908437) 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, 81318067 + ... + 81318072.

It is an arithmetic number, because the mean of its divisors is an integer number (162636140).

Almost surely, 2^487908417 is an apocalyptic number.

It is an amenable number.

487908417 is a deficient number, since it is larger than the sum of its proper divisors (162636143).

487908417 is a wasteful number, since it uses less digits than its factorization.

487908417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162636142.

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 487908417 is about 22088.6490533034. The cubic root of 487908417 is about 787.2501826892.

The spelling of 487908417 in words is "four hundred eighty-seven million, nine hundred eight thousand, four hundred seventeen".