1028147899 has 2 divisors, whose sum is σ = 1028147900. Its totient is φ = 1028147898.

The previous prime is 1028147849. The next prime is 1028147921. The reversal of 1028147899 is 9987418201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1028147899 - 2¹¹ = 1028145851 is a prime.

It is a super-2 number, since 2×1028147899² = 2114176204436228402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1028147839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 514073949 + 514073950.

It is an arithmetic number, because the mean of its divisors is an integer number (514073950).

Almost surely, 2^1028147899 is an apocalyptic number.

1028147899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028147899 is an equidigital number, since it uses as much as digits as its factorization.

1028147899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 49.

The square root of 1028147899 is about 32064.7454223482. The cubic root of 1028147899 is about 1009.2959505347.

The spelling of 1028147899 in words is "one billion, twenty-eight million, one hundred forty-seven thousand, eight hundred ninety-nine".