2086813493 has 2 divisors, whose sum is σ = 2086813494. Its totient is φ = 2086813492.

The previous prime is 2086813459. The next prime is 2086813511. The reversal of 2086813493 is 3943186802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1843671844 + 243141649 = 42938^2 + 15593^2 .

It is a cyclic number.

It is not a de Polignac number, because 2086813493 - 2²⁶ = 2019704629 is a prime.

It is a super-2 number, since 2×2086813493² = 8709581109133722098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2086813433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043406746 + 1043406747.

It is an arithmetic number, because the mean of its divisors is an integer number (1043406747).

Almost surely, 2^2086813493 is an apocalyptic number.

It is an amenable number.

2086813493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2086813493 is an equidigital number, since it uses as much as digits as its factorization.

2086813493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 2086813493 is about 45681.6537901158. The cubic root of 2086813493 is about 1277.8931594743.

The spelling of 2086813493 in words is "two billion, eighty-six million, eight hundred thirteen thousand, four hundred ninety-three".