917971996 has 6 divisors (see below), whose sum is σ = 1606451000. Its totient is φ = 458985996.

The previous prime is 917971991. The next prime is 917971997. The reversal of 917971996 is 699179719.

917971996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 917971996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (917971991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114746496 + ... + 114746503.

Almost surely, 2^917971996 is an apocalyptic number.

It is an amenable number.

917971996 is a deficient number, since it is larger than the sum of its proper divisors (688479004).

917971996 is a wasteful number, since it uses less digits than its factorization.

917971996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229493003 (or 229493001 counting only the distinct ones).

The product of its digits is 1928934, while the sum is 58.

The square root of 917971996 is about 30298.0526766985. The cubic root of 917971996 is about 971.8736577023.

The spelling of 917971996 in words is "nine hundred seventeen million, nine hundred seventy-one thousand, nine hundred ninety-six".