1497730393 has 2 divisors, whose sum is σ = 1497730394. Its totient is φ = 1497730392.

The previous prime is 1497730391. The next prime is 1497730439. The reversal of 1497730393 is 3930377941.

It is an a-pointer prime, because the next prime (1497730439) can be obtained adding 1497730393 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1437698889 + 60031504 = 37917^2 + 7748^2 .

It is a cyclic number.

It is not a de Polignac number, because 1497730393 - 2¹ = 1497730391 is a prime.

Together with 1497730391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1497730391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748865196 + 748865197.

It is an arithmetic number, because the mean of its divisors is an integer number (748865197).

Almost surely, 2^1497730393 is an apocalyptic number.

It is an amenable number.

1497730393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1497730393 is an equidigital number, since it uses as much as digits as its factorization.

1497730393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 428652, while the sum is 46.

The square root of 1497730393 is about 38700.5218698663. The cubic root of 1497730393 is about 1144.1366063520.

The spelling of 1497730393 in words is "one billion, four hundred ninety-seven million, seven hundred thirty thousand, three hundred ninety-three".