3916896985 has 16 divisors (see below), whose sum is σ = 5012582400. Its totient is φ = 2927966976.

The previous prime is 3916896959. The next prime is 3916897003. The reversal of 3916896985 is 5896986193.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3916896985 - 2¹¹ = 3916894937 is a prime.

It is a super-2 number, since 2×3916896985² = 30684163982204180450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153945 + ... + 177574.

It is an arithmetic number, because the mean of its divisors is an integer number (313286400).

Almost surely, 2^3916896985 is an apocalyptic number.

It is an amenable number.

3916896985 is a deficient number, since it is larger than the sum of its proper divisors (1095685415).

3916896985 is a wasteful number, since it uses less digits than its factorization.

3916896985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331680.

The product of its digits is 25194240, while the sum is 64.

The square root of 3916896985 is about 62585.1179195182. The cubic root of 3916896985 is about 1576.3308794535.

The spelling of 3916896985 in words is "three billion, nine hundred sixteen million, eight hundred ninety-six thousand, nine hundred eighty-five".