663627273 has 8 divisors (see below), whose sum is σ = 897299136. Its totient is φ = 436186800.

The previous prime is 663627259. The next prime is 663627281. The reversal of 663627273 is 372726366.

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

It is not a de Polignac number, because 663627273 - 2⁵ = 663627241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (663627203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1557598 + ... + 1558023.

It is an arithmetic number, because the mean of its divisors is an integer number (112162392).

Almost surely, 2^663627273 is an apocalyptic number.

It is an amenable number.

663627273 is a deficient number, since it is larger than the sum of its proper divisors (233671863).

663627273 is a wasteful number, since it uses less digits than its factorization.

663627273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115695.

The product of its digits is 381024, while the sum is 42.

The square root of 663627273 is about 25760.9641318022. The cubic root of 663627273 is about 872.2508646295.

The spelling of 663627273 in words is "six hundred sixty-three million, six hundred twenty-seven thousand, two hundred seventy-three".