806118431 has 2 divisors, whose sum is σ = 806118432. Its totient is φ = 806118430.

The previous prime is 806118413. The next prime is 806118557. The reversal of 806118431 is 134811608.

It is a happy number.

Together with previous prime (806118413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 806118431 - 2⁶ = 806118367 is a prime.

It is a super-2 number, since 2×806118431² = 1299653849595803522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806118031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403059215 + 403059216.

It is an arithmetic number, because the mean of its divisors is an integer number (403059216).

Almost surely, 2^806118431 is an apocalyptic number.

806118431 is a deficient number, since it is larger than the sum of its proper divisors (1).

806118431 is an equidigital number, since it uses as much as digits as its factorization.

806118431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 806118431 is about 28392.2248335702. The cubic root of 806118431 is about 930.6783623534.

The spelling of 806118431 in words is "eight hundred six million, one hundred eighteen thousand, four hundred thirty-one".