2086567989 has 16 divisors (see below), whose sum is σ = 3065062464. Its totient is φ = 1252064000.

The previous prime is 2086567943. The next prime is 2086567993. The reversal of 2086567989 is 9897656802.

It is a happy number.

It is not a de Polignac number, because 2086567989 - 2⁹ = 2086567477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2086567909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309684 + ... + 316349.

It is an arithmetic number, because the mean of its divisors is an integer number (191566404).

Almost surely, 2^2086567989 is an apocalyptic number.

It is an amenable number.

2086567989 is a deficient number, since it is larger than the sum of its proper divisors (978494475).

2086567989 is a wasteful number, since it uses less digits than its factorization.

2086567989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626148.

The product of its (nonzero) digits is 13063680, while the sum is 60.

The square root of 2086567989 is about 45678.9665929517. The cubic root of 2086567989 is about 1277.8430447600.

It can be divided in two parts, 2086 and 567989, that added together give a palindrome (570075).

The spelling of 2086567989 in words is "two billion, eighty-six million, five hundred sixty-seven thousand, nine hundred eighty-nine".