807199663 has 2 divisors, whose sum is σ = 807199664. Its totient is φ = 807199662.

The previous prime is 807199649. The next prime is 807199691. The reversal of 807199663 is 366991708.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 807199663 - 2¹³ = 807191471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (807199633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403599831 + 403599832.

It is an arithmetic number, because the mean of its divisors is an integer number (403599832).

Almost surely, 2^807199663 is an apocalyptic number.

807199663 is a deficient number, since it is larger than the sum of its proper divisors (1).

807199663 is an equidigital number, since it uses as much as digits as its factorization.

807199663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 807199663 is about 28411.2594405809. The cubic root of 807199663 is about 931.0942771131.

The spelling of 807199663 in words is "eight hundred seven million, one hundred ninety-nine thousand, six hundred sixty-three".