1089980393 has 2 divisors, whose sum is σ = 1089980394. Its totient is φ = 1089980392.

The previous prime is 1089980389. The next prime is 1089980413. The reversal of 1089980393 is 3930899801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1035101929 + 54878464 = 32173^2 + 7408^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089980393 - 2² = 1089980389 is a prime.

It is not a weakly prime, because it can be changed into another prime (1089980323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544990196 + 544990197.

It is an arithmetic number, because the mean of its divisors is an integer number (544990197).

Almost surely, 2^1089980393 is an apocalyptic number.

It is an amenable number.

1089980393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089980393 is an equidigital number, since it uses as much as digits as its factorization.

1089980393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 1089980393 is about 33014.8510976500. The cubic root of 1089980393 is about 1029.1362957711.

The spelling of 1089980393 in words is "one billion, eighty-nine million, nine hundred eighty thousand, three hundred ninety-three".