919688216 has 16 divisors (see below), whose sum is σ = 1752685440. Its totient is φ = 452305440.

The previous prime is 919688201. The next prime is 919688221. The reversal of 919688216 is 612886919.

It is a happy number.

It is a super-3 number, since 3×919688216³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 941816 + ... + 942791.

It is an arithmetic number, because the mean of its divisors is an integer number (109542840).

Almost surely, 2^919688216 is an apocalyptic number.

It is an amenable number.

919688216 is a deficient number, since it is larger than the sum of its proper divisors (832997224).

919688216 is a wasteful number, since it uses less digits than its factorization.

919688216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884674 (or 1884670 counting only the distinct ones).

The product of its digits is 373248, while the sum is 50.

The square root of 919688216 is about 30326.3617336469. The cubic root of 919688216 is about 972.4789450970.

The spelling of 919688216 in words is "nine hundred nineteen million, six hundred eighty-eight thousand, two hundred sixteen".