487778673 has 8 divisors (see below), whose sum is σ = 651470688. Its totient is φ = 324636224.

The previous prime is 487778657. The next prime is 487778677. The reversal of 487778673 is 376877784.

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 487778673 - 2⁴ = 487778657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (487778677) 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, 135315 + ... + 138872.

It is an arithmetic number, because the mean of its divisors is an integer number (81433836).

Almost surely, 2^487778673 is an apocalyptic number.

It is an amenable number.

487778673 is a deficient number, since it is larger than the sum of its proper divisors (163692015).

487778673 is a wasteful number, since it uses less digits than its factorization.

487778673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274783.

The product of its digits is 11063808, while the sum is 57.

The square root of 487778673 is about 22085.7119649786. The cubic root of 487778673 is about 787.1803949728.

The spelling of 487778673 in words is "four hundred eighty-seven million, seven hundred seventy-eight thousand, six hundred seventy-three".