927216389 has 8 divisors (see below), whose sum is σ = 1015086432. Its totient is φ = 839942640.

The previous prime is 927216361. The next prime is 927216427. The reversal of 927216389 is 983612729.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-927216389 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (927246389) 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, 145814 + ... + 152039.

It is an arithmetic number, because the mean of its divisors is an integer number (126885804).

Almost surely, 2^927216389 is an apocalyptic number.

It is an amenable number.

927216389 is a deficient number, since it is larger than the sum of its proper divisors (87870043).

927216389 is a wasteful number, since it uses less digits than its factorization.

927216389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298147.

The product of its digits is 326592, while the sum is 47.

The square root of 927216389 is about 30450.2280615433. The cubic root of 927216389 is about 975.1251696413.

The spelling of 927216389 in words is "nine hundred twenty-seven million, two hundred sixteen thousand, three hundred eighty-nine".