2087164289 has 4 divisors (see below), whose sum is σ = 2385330624. Its totient is φ = 1788997956.

The previous prime is 2087164283. The next prime is 2087164291. The reversal of 2087164289 is 9824617802.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9824617802 = 2 ⋅4912308901.

It is a cyclic number.

It is not a de Polignac number, because 2087164289 - 2¹⁶ = 2087098753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2087164283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149083157 + ... + 149083170.

It is an arithmetic number, because the mean of its divisors is an integer number (596332656).

Almost surely, 2^2087164289 is an apocalyptic number.

It is an amenable number.

2087164289 is a deficient number, since it is larger than the sum of its proper divisors (298166335).

2087164289 is an equidigital number, since it uses as much as digits as its factorization.

2087164289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298166334.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 2087164289 is about 45685.4932007962. The cubic root of 2087164289 is about 1277.9647606170.

The spelling of 2087164289 in words is "two billion, eighty-seven million, one hundred sixty-four thousand, two hundred eighty-nine".