2086729631 has 6 divisors (see below), whose sum is σ = 2427420240. Its totient is φ = 1788625356.

The previous prime is 2086729607. The next prime is 2086729693. The reversal of 2086729631 is 1369276802.

It is a de Polignac number, because none of the positive numbers 2^k-2086729631 is a prime.

It is a super-2 number, since 2×2086729631² = 8708881105786792322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2086729031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21293111 + ... + 21293208.

It is an arithmetic number, because the mean of its divisors is an integer number (404570040).

Almost surely, 2^2086729631 is an apocalyptic number.

2086729631 is a deficient number, since it is larger than the sum of its proper divisors (340690609).

2086729631 is an equidigital number, since it uses as much as digits as its factorization.

2086729631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42586333 (or 42586326 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 2086729631 is about 45680.7358850533. The cubic root of 2086729631 is about 1277.8760411722.

The spelling of 2086729631 in words is "two billion, eighty-six million, seven hundred twenty-nine thousand, six hundred thirty-one".