2089688431 has 2 divisors, whose sum is σ = 2089688432. Its totient is φ = 2089688430.

The previous prime is 2089688389. The next prime is 2089688449. The reversal of 2089688431 is 1348869802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2089688431 - 2⁷ = 2089688303 is a prime.

It is a super-2 number, since 2×2089688431² = 8733595477310483522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2089688231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1044844215 + 1044844216.

It is an arithmetic number, because the mean of its divisors is an integer number (1044844216).

Almost surely, 2^2089688431 is an apocalyptic number.

2089688431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2089688431 is an equidigital number, since it uses as much as digits as its factorization.

2089688431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 2089688431 is about 45713.1100560878. The cubic root of 2089688431 is about 1278.4797280686.

The spelling of 2089688431 in words is "two billion, eighty-nine million, six hundred eighty-eight thousand, four hundred thirty-one".