756800099 has 16 divisors (see below), whose sum is σ = 859632480. Its totient is φ = 660192000.

The previous prime is 756800089. The next prime is 756800137. The reversal of 756800099 is 990008657.

It is a Cunningham number, because it is equal to 27510²-1.

It is a cyclic number.

It is not a de Polignac number, because 756800099 - 2¹² = 756796003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (756800029) 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 15 ways as a sum of consecutive naturals, for example, 13757 + ... + 41265.

It is an arithmetic number, because the mean of its divisors is an integer number (53727030).

Almost surely, 2^756800099 is an apocalyptic number.

756800099 is a deficient number, since it is larger than the sum of its proper divisors (102832381).

756800099 is a wasteful number, since it uses less digits than its factorization.

756800099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27622.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 756800099 is about 27509.9999818248. Note that the first 4 decimals coincide. The cubic root of 756800099 is about 911.2979501878.

The spelling of 756800099 in words is "seven hundred fifty-six million, eight hundred thousand, ninety-nine".