806863331 has 2 divisors, whose sum is σ = 806863332. Its totient is φ = 806863330.

The previous prime is 806863307. The next prime is 806863357. The reversal of 806863331 is 133368608.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-806863331 is a prime.

It is a super-2 number, since 2×806863331² = 1302056869824831122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (806863931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403431665 + 403431666.

It is an arithmetic number, because the mean of its divisors is an integer number (403431666).

Almost surely, 2^806863331 is an apocalyptic number.

806863331 is a deficient number, since it is larger than the sum of its proper divisors (1).

806863331 is an equidigital number, since it uses as much as digits as its factorization.

806863331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 806863331 is about 28405.3398325033. The cubic root of 806863331 is about 930.9649409572.

The spelling of 806863331 in words is "eight hundred six million, eight hundred sixty-three thousand, three hundred thirty-one".