1099694839 has 2 divisors, whose sum is σ = 1099694840. Its totient is φ = 1099694838.

The previous prime is 1099694821. The next prime is 1099694851. The reversal of 1099694839 is 9384969901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1099694839 - 2¹³ = 1099686647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099634839) by changing a digit.

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 as a sum of consecutive naturals, namely, 549847419 + 549847420.

It is an arithmetic number, because the mean of its divisors is an integer number (549847420).

Almost surely, 2^1099694839 is an apocalyptic number.

1099694839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099694839 is an equidigital number, since it uses as much as digits as its factorization.

1099694839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3779136, while the sum is 58.

The square root of 1099694839 is about 33161.6471092737. The cubic root of 1099694839 is about 1032.1846485573.

The spelling of 1099694839 in words is "one billion, ninety-nine million, six hundred ninety-four thousand, eight hundred thirty-nine".