663379587 has 18 divisors (see below), whose sum is σ = 1037596092. Its totient is φ = 408232656.

The previous prime is 663379583. The next prime is 663379589. The reversal of 663379587 is 785973366.

663379587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 663379587 - 2² = 663379583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (663379583) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 216553 + ... + 219594.

Almost surely, 2^663379587 is an apocalyptic number.

663379587 is a deficient number, since it is larger than the sum of its proper divisors (374216505).

663379587 is a wasteful number, since it uses less digits than its factorization.

663379587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436179 (or 436163 counting only the distinct ones).

The product of its digits is 5715360, while the sum is 54.

The square root of 663379587 is about 25756.1562932049. The cubic root of 663379587 is about 872.1423342239.

The spelling of 663379587 in words is "six hundred sixty-three million, three hundred seventy-nine thousand, five hundred eighty-seven".