663631234 has 8 divisors (see below), whose sum is σ = 1137653568. Its totient is φ = 284413380.

The previous prime is 663631201. The next prime is 663631271. The reversal of 663631234 is 432136366.

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

It is a self number, because there is not a number n which added to its sum of digits gives 663631234.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23701102 + ... + 23701129.

It is an arithmetic number, because the mean of its divisors is an integer number (142206696).

Almost surely, 2^663631234 is an apocalyptic number.

663631234 is a deficient number, since it is larger than the sum of its proper divisors (474022334).

663631234 is a wasteful number, since it uses less digits than its factorization.

663631234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47402240.

The product of its digits is 46656, while the sum is 34.

The square root of 663631234 is about 25761.0410115740. The cubic root of 663631234 is about 872.2526000308.

The spelling of 663631234 in words is "six hundred sixty-three million, six hundred thirty-one thousand, two hundred thirty-four".