1089670613 has 2 divisors, whose sum is σ = 1089670614. Its totient is φ = 1089670612.

The previous prime is 1089670591. The next prime is 1089670627. The reversal of 1089670613 is 3160769801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 710862244 + 378808369 = 26662^2 + 19463^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089670613 - 2²² = 1085476309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1089670643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 544835306 + 544835307.

It is an arithmetic number, because the mean of its divisors is an integer number (544835307).

Almost surely, 2^1089670613 is an apocalyptic number.

It is an amenable number.

1089670613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1089670613 is an equidigital number, since it uses as much as digits as its factorization.

1089670613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 1089670613 is about 33010.1592392403. The cubic root of 1089670613 is about 1029.0387906383.

The spelling of 1089670613 in words is "one billion, eighty-nine million, six hundred seventy thousand, six hundred thirteen".