840968115 has 16 divisors (see below), whose sum is σ = 1449053088. Its totient is φ = 414014976.

The previous prime is 840968083. The next prime is 840968147. The reversal of 840968115 is 511869048.

It is an interprime number because it is at equal distance from previous prime (840968083) and next prime (840968147).

It is not a de Polignac number, because 840968115 - 2⁵ = 840968083 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 2156134 + ... + 2156523.

It is an arithmetic number, because the mean of its divisors is an integer number (90565818).

Almost surely, 2^840968115 is an apocalyptic number.

840968115 is a deficient number, since it is larger than the sum of its proper divisors (608084973).

840968115 is a wasteful number, since it uses less digits than its factorization.

840968115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312678.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 840968115 is about 28999.4502534100. The cubic root of 840968115 is about 943.9011386673.

The spelling of 840968115 in words is "eight hundred forty million, nine hundred sixty-eight thousand, one hundred fifteen".