806299931 has 4 divisors (see below), whose sum is σ = 816014472. Its totient is φ = 796585392.

The previous prime is 806299913. The next prime is 806299933. The reversal of 806299931 is 139992608.

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

It is a cyclic number.

It is not a de Polignac number, because 806299931 - 2¹⁴ = 806283547 is a prime.

It is a super-2 number, since 2×806299931² = 1300239157461209522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806299933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4857146 + ... + 4857311.

It is an arithmetic number, because the mean of its divisors is an integer number (204003618).

Almost surely, 2^806299931 is an apocalyptic number.

806299931 is a deficient number, since it is larger than the sum of its proper divisors (9714541).

806299931 is an equidigital number, since it uses as much as digits as its factorization.

806299931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9714540.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 806299931 is about 28395.4209512731. The cubic root of 806299931 is about 930.7482054601.

The spelling of 806299931 in words is "eight hundred six million, two hundred ninety-nine thousand, nine hundred thirty-one".