1388364899 has 2 divisors, whose sum is σ = 1388364900. Its totient is φ = 1388364898.

The previous prime is 1388364883. The next prime is 1388364947. The reversal of 1388364899 is 9984638831.

It is a weak prime.

It is an emirp because it is prime and its reverse (9984638831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1388364899 - 2⁴ = 1388364883 is a prime.

It is not a weakly prime, because it can be changed into another prime (1388364869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694182449 + 694182450.

It is an arithmetic number, because the mean of its divisors is an integer number (694182450).

Almost surely, 2^1388364899 is an apocalyptic number.

1388364899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1388364899 is an equidigital number, since it uses as much as digits as its factorization.

1388364899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 59.

The square root of 1388364899 is about 37260.7688997423. The cubic root of 1388364899 is about 1115.5812553826.

The spelling of 1388364899 in words is "one billion, three hundred eighty-eight million, three hundred sixty-four thousand, eight hundred ninety-nine".