1028974539 has 4 divisors (see below), whose sum is σ = 1371966056. Its totient is φ = 685983024.

The previous prime is 1028974459. The next prime is 1028974559. The reversal of 1028974539 is 9354798201.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1028974539 - 2¹⁹ = 1028450251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028974559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171495754 + ... + 171495759.

It is an arithmetic number, because the mean of its divisors is an integer number (342991514).

Almost surely, 2^1028974539 is an apocalyptic number.

1028974539 is a deficient number, since it is larger than the sum of its proper divisors (342991517).

1028974539 is an equidigital number, since it uses as much as digits as its factorization.

1028974539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342991516.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 1028974539 is about 32077.6330018285. The cubic root of 1028974539 is about 1009.5663723628.

The spelling of 1028974539 in words is "one billion, twenty-eight million, nine hundred seventy-four thousand, five hundred thirty-nine".