2089689479 has 2 divisors, whose sum is σ = 2089689480. Its totient is φ = 2089689478.

The previous prime is 2089689431. The next prime is 2089689557. The reversal of 2089689479 is 9749869802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2089689479 - 2⁸ = 2089689223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2089686479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1044844739 + 1044844740.

It is an arithmetic number, because the mean of its divisors is an integer number (1044844740).

Almost surely, 2^2089689479 is an apocalyptic number.

2089689479 is a deficient number, since it is larger than the sum of its proper divisors (1).

2089689479 is an equidigital number, since it uses as much as digits as its factorization.

2089689479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15676416, while the sum is 62.

The square root of 2089689479 is about 45713.1215188812. The cubic root of 2089689479 is about 1278.4799417921.

The spelling of 2089689479 in words is "two billion, eighty-nine million, six hundred eighty-nine thousand, four hundred seventy-nine".