1097309839 has 2 divisors, whose sum is σ = 1097309840. Its totient is φ = 1097309838.

The previous prime is 1097309803. The next prime is 1097309887. The reversal of 1097309839 is 9389037901.

It is a weak prime.

It is an emirp because it is prime and its reverse (9389037901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1097309839 - 2⁷ = 1097309711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1097309792 and 1097309801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1097309039) 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 as a sum of consecutive naturals, namely, 548654919 + 548654920.

It is an arithmetic number, because the mean of its divisors is an integer number (548654920).

Almost surely, 2^1097309839 is an apocalyptic number.

1097309839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097309839 is an equidigital number, since it uses as much as digits as its factorization.

1097309839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 1097309839 is about 33125.6673744092. The cubic root of 1097309839 is about 1031.4379134565.

The spelling of 1097309839 in words is "one billion, ninety-seven million, three hundred nine thousand, eight hundred thirty-nine".