1028734453 has 4 divisors (see below), whose sum is σ = 1041128928. Its totient is φ = 1016339980.

The previous prime is 1028734433. The next prime is 1028734459. The reversal of 1028734453 is 3544378201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1028734453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028734459) 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, 6197113 + ... + 6197278.

It is an arithmetic number, because the mean of its divisors is an integer number (260282232).

Almost surely, 2^1028734453 is an apocalyptic number.

It is an amenable number.

1028734453 is a deficient number, since it is larger than the sum of its proper divisors (12394475).

1028734453 is an equidigital number, since it uses as much as digits as its factorization.

1028734453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12394474.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 1028734453 is about 32073.8905186134. The cubic root of 1028734453 is about 1009.4878470619.

The spelling of 1028734453 in words is "one billion, twenty-eight million, seven hundred thirty-four thousand, four hundred fifty-three".