921947716 has 24 divisors (see below), whose sum is σ = 1703240000. Its totient is φ = 435448224.

The previous prime is 921947713. The next prime is 921947743. The reversal of 921947716 is 617749129.

It is not an unprimeable number, because it can be changed into a prime (921947713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9145 + ... + 43903.

Almost surely, 2^921947716 is an apocalyptic number.

It is an amenable number.

921947716 is a deficient number, since it is larger than the sum of its proper divisors (781292284).

921947716 is a wasteful number, since it uses less digits than its factorization.

921947716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35131 (or 35129 counting only the distinct ones).

The product of its digits is 190512, while the sum is 46.

The square root of 921947716 is about 30363.5919482528. The cubic root of 921947716 is about 973.2746927308.

The spelling of 921947716 in words is "nine hundred twenty-one million, nine hundred forty-seven thousand, seven hundred sixteen".