1089828841 has 8 divisors (see below), whose sum is σ = 1096363944. Its totient is φ = 1083310080.

The previous prime is 1089828823. The next prime is 1089828863. The reversal of 1089828841 is 1488289801.

It can be written as a sum of positive squares in 4 ways, for example, as 154753600 + 935075241 = 12440^2 + 30579^2 .

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 1089828841 - 2⁹ = 1089828329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1089828041) 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, 145705 + ... + 153001.

It is an arithmetic number, because the mean of its divisors is an integer number (137045493).

Almost surely, 2^1089828841 is an apocalyptic number.

It is an amenable number.

1089828841 is a deficient number, since it is larger than the sum of its proper divisors (6535103).

1089828841 is an equidigital number, since it uses as much as digits as its factorization.

1089828841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8171.

The product of its (nonzero) digits is 294912, while the sum is 49.

The square root of 1089828841 is about 33012.5558083587. Note that the first 3 decimals coincide. The cubic root of 1089828841 is about 1029.0885961690.

The spelling of 1089828841 in words is "one billion, eighty-nine million, eight hundred twenty-eight thousand, eight hundred forty-one".