487853981 has 8 divisors (see below), whose sum is σ = 521380800. Its totient is φ = 454863808.

The previous prime is 487853969. The next prime is 487853987. The reversal of 487853981 is 189358784.

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

It is a cyclic number.

It is not a de Polignac number, because 487853981 - 2¹⁸ = 487591837 is a prime.

It is a super-6 number, since 6×487853981⁶ (a number of 53 digits) contains 666666 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (487853987) 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, 132281 + ... + 135918.

It is an arithmetic number, because the mean of its divisors is an integer number (65172600).

Almost surely, 2^487853981 is an apocalyptic number.

It is an amenable number.

487853981 is a deficient number, since it is larger than the sum of its proper divisors (33526819).

487853981 is a wasteful number, since it uses less digits than its factorization.

487853981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268323.

The product of its digits is 1935360, while the sum is 53.

The square root of 487853981 is about 22087.4168023334. The cubic root of 487853981 is about 787.2209037349.

The spelling of 487853981 in words is "four hundred eighty-seven million, eight hundred fifty-three thousand, nine hundred eighty-one".