1597340699 has 2 divisors, whose sum is σ = 1597340700. Its totient is φ = 1597340698.

The previous prime is 1597340687. The next prime is 1597340707. The reversal of 1597340699 is 9960437951.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1597340699 - 2⁴ = 1597340683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1597340699.

It is not a weakly prime, because it can be changed into another prime (1597340629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 798670349 + 798670350.

It is an arithmetic number, because the mean of its divisors is an integer number (798670350).

Almost surely, 2^1597340699 is an apocalyptic number.

1597340699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1597340699 is an equidigital number, since it uses as much as digits as its factorization.

1597340699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1837080, while the sum is 53.

The square root of 1597340699 is about 39966.7449137405. The cubic root of 1597340699 is about 1168.9587490136.

The spelling of 1597340699 in words is "one billion, five hundred ninety-seven million, three hundred forty thousand, six hundred ninety-nine".