1089836497 has 2 divisors, whose sum is σ = 1089836498. Its totient is φ = 1089836496.

The previous prime is 1089836477. The next prime is 1089836551. The reversal of 1089836497 is 7946389801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1088406081 + 1430416 = 32991^2 + 1196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1089836497 is a prime.

It is a super-3 number, since 3×1089836497³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1089836437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544918248 + 544918249.

It is an arithmetic number, because the mean of its divisors is an integer number (544918249).

Almost surely, 2^1089836497 is an apocalyptic number.

It is an amenable number.

1089836497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089836497 is an equidigital number, since it uses as much as digits as its factorization.

1089836497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The square root of 1089836497 is about 33012.6717640363. The cubic root of 1089836497 is about 1029.0910059308.

The spelling of 1089836497 in words is "one billion, eighty-nine million, eight hundred thirty-six thousand, four hundred ninety-seven".