1498963993 has 2 divisors, whose sum is σ = 1498963994. Its totient is φ = 1498963992.

The previous prime is 1498963931. The next prime is 1498964011. The reversal of 1498963993 is 3993698941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1003812489 + 495151504 = 31683^2 + 22252^2 .

It is an emirp because it is prime and its reverse (3993698941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1498963993 - 2¹⁷ = 1498832921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1498963913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749481996 + 749481997.

It is an arithmetic number, because the mean of its divisors is an integer number (749481997).

Almost surely, 2^1498963993 is an apocalyptic number.

It is an amenable number.

1498963993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1498963993 is an equidigital number, since it uses as much as digits as its factorization.

1498963993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11337408, while the sum is 61.

The square root of 1498963993 is about 38716.4563590213. The cubic root of 1498963993 is about 1144.4506414194.

The spelling of 1498963993 in words is "one billion, four hundred ninety-eight million, nine hundred sixty-three thousand, nine hundred ninety-three".