2089934813 has 4 divisors (see below), whose sum is σ = 2180801568. Its totient is φ = 1999068060.

The previous prime is 2089934761. The next prime is 2089934839. The reversal of 2089934813 is 3184399802.

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.

It is a cyclic number.

It is not a de Polignac number, because 2089934813 - 2¹⁴ = 2089918429 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 (2089934893) 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, 45433343 + ... + 45433388.

It is an arithmetic number, because the mean of its divisors is an integer number (545200392).

Almost surely, 2^2089934813 is an apocalyptic number.

2089934813 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2089934813 is a deficient number, since it is larger than the sum of its proper divisors (90866755).

2089934813 is an equidigital number, since it uses as much as digits as its factorization.

2089934813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90866754.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 2089934813 is about 45715.8048490891. The cubic root of 2089934813 is about 1278.5299719246.

The spelling of 2089934813 in words is "two billion, eighty-nine million, nine hundred thirty-four thousand, eight hundred thirteen".