806239403 has 2 divisors, whose sum is σ = 806239404. Its totient is φ = 806239402.

The previous prime is 806239397. The next prime is 806239417. The reversal of 806239403 is 304932608.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 806239403 - 2²⁸ = 537803947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (806239463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403119701 + 403119702.

It is an arithmetic number, because the mean of its divisors is an integer number (403119702).

Almost surely, 2^806239403 is an apocalyptic number.

806239403 is a deficient number, since it is larger than the sum of its proper divisors (1).

806239403 is an equidigital number, since it uses as much as digits as its factorization.

806239403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 806239403 is about 28394.3551256231. The cubic root of 806239403 is about 930.7249148148.

The spelling of 806239403 in words is "eight hundred six million, two hundred thirty-nine thousand, four hundred three".