2085472789 has 4 divisors (see below), whose sum is σ = 2086039980. Its totient is φ = 2084905600.

The previous prime is 2085472771. The next prime is 2085472801. The reversal of 2085472789 is 9872745802.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1488647889 + 596824900 = 38583^2 + 24430^2 .

It is a cyclic number.

It is not a de Polignac number, because 2085472789 - 2¹³ = 2085464597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085472289) 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, 278044 + ... + 285445.

It is an arithmetic number, because the mean of its divisors is an integer number (521509995).

Almost surely, 2^2085472789 is an apocalyptic number.

It is an amenable number.

2085472789 is a deficient number, since it is larger than the sum of its proper divisors (567191).

2085472789 is an equidigital number, since it uses as much as digits as its factorization.

2085472789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567190.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 2085472789 is about 45666.9770074613. The cubic root of 2085472789 is about 1277.6194337654.

The spelling of 2085472789 in words is "two billion, eighty-five million, four hundred seventy-two thousand, seven hundred eighty-nine".