487290909 has 8 divisors (see below), whose sum is σ = 742538560. Its totient is φ = 278451936.

The previous prime is 487290889. The next prime is 487290911. The reversal of 487290909 is 909092784.

It is a happy number.

487290909 is nontrivially palindromic in base 4.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 487290909 - 2⁸ = 487290653 is a prime.

It is a super-4 number, since 4×487290909⁴ (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487290919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11602144 + ... + 11602185.

It is an arithmetic number, because the mean of its divisors is an integer number (92817320).

Almost surely, 2^487290909 is an apocalyptic number.

It is an amenable number.

487290909 is a deficient number, since it is larger than the sum of its proper divisors (255247651).

487290909 is a wasteful number, since it uses less digits than its factorization.

487290909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23204339.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 487290909 is about 22074.6666792502. Note that the first 4 decimals coincide. The cubic root of 487290909 is about 786.9179218931.

The spelling of 487290909 in words is "four hundred eighty-seven million, two hundred ninety thousand, nine hundred nine".