1078528789 has 8 divisors (see below), whose sum is σ = 1174544280. Its totient is φ = 984377856.

The previous prime is 1078528771. The next prime is 1078528813. The reversal of 1078528789 is 9878258701.

It can be written as a sum of positive squares in 4 ways, for example, as 13616100 + 1064912689 = 3690^2 + 32633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1078528789 - 2¹⁷ = 1078397717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078528769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464932 + ... + 467245.

It is an arithmetic number, because the mean of its divisors is an integer number (146818035).

Almost surely, 2^1078528789 is an apocalyptic number.

It is an amenable number.

1078528789 is a deficient number, since it is larger than the sum of its proper divisors (96015491).

1078528789 is an equidigital number, since it uses as much as digits as its factorization.

1078528789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932279.

The product of its (nonzero) digits is 2257920, while the sum is 55.

The square root of 1078528789 is about 32840.9620595987. The cubic root of 1078528789 is about 1025.5194793715.

The spelling of 1078528789 in words is "one billion, seventy-eight million, five hundred twenty-eight thousand, seven hundred eighty-nine".