1493407387 has 2 divisors, whose sum is σ = 1493407388. Its totient is φ = 1493407386.

The previous prime is 1493407379. The next prime is 1493407529. The reversal of 1493407387 is 7837043941.

It is a weak prime.

It is an emirp because it is prime and its reverse (7837043941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1493407387 - 2³ = 1493407379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1493407327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 746703693 + 746703694.

It is an arithmetic number, because the mean of its divisors is an integer number (746703694).

Almost surely, 2^1493407387 is an apocalyptic number.

1493407387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1493407387 is an equidigital number, since it uses as much as digits as its factorization.

1493407387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 1493407387 is about 38644.6294716355. The cubic root of 1493407387 is about 1143.0347445277.

The spelling of 1493407387 in words is "one billion, four hundred ninety-three million, four hundred seven thousand, three hundred eighty-seven".