787944099 has 4 divisors (see below), whose sum is σ = 1050592136. Its totient is φ = 525296064.

The previous prime is 787944089. The next prime is 787944103. The reversal of 787944099 is 990449787.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 787944099 - 2²⁴ = 771166883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (787944089) 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 3 ways as a sum of consecutive naturals, for example, 131324014 + ... + 131324019.

It is an arithmetic number, because the mean of its divisors is an integer number (262648034).

Almost surely, 2^787944099 is an apocalyptic number.

787944099 is a deficient number, since it is larger than the sum of its proper divisors (262648037).

787944099 is a wasteful number, since it uses less digits than its factorization.

787944099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262648036.

The product of its (nonzero) digits is 4572288, while the sum is 57.

The square root of 787944099 is about 28070.3419822417. The cubic root of 787944099 is about 923.6309326545.

The spelling of 787944099 in words is "seven hundred eighty-seven million, nine hundred forty-four thousand, ninety-nine".