1217063938 has 32 divisors (see below), whose sum is σ = 1915792560. Its totient is φ = 579129600.

The previous prime is 1217063933. The next prime is 1217063941. The reversal of 1217063938 is 8393607121.

It can be written as a sum of positive squares in 8 ways, for example, as 711128889 + 505935049 = 26667^2 + 22493^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1217063938.

It is not an unprimeable number, because it can be changed into a prime (1217063933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2184756 + ... + 2185312.

Almost surely, 2^1217063938 is an apocalyptic number.

1217063938 is a deficient number, since it is larger than the sum of its proper divisors (698728622).

1217063938 is a wasteful number, since it uses less digits than its factorization.

1217063938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1217063938 is about 34886.4434702077. The cubic root of 1217063938 is about 1067.6718641289.

The spelling of 1217063938 in words is "one billion, two hundred seventeen million, sixty-three thousand, nine hundred thirty-eight".