807367993 has 2 divisors, whose sum is σ = 807367994. Its totient is φ = 807367992.

The previous prime is 807367987. The next prime is 807368041. The reversal of 807367993 is 399763708.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 464488704 + 342879289 = 21552^2 + 18517^2 .

It is a cyclic number.

It is not a de Polignac number, because 807367993 - 2⁹ = 807367481 is a prime.

It is a super-2 number, since 2×807367993² = 1303686152241696098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 807367993.

It is not a weakly prime, because it can be changed into another prime (807367933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403683996 + 403683997.

It is an arithmetic number, because the mean of its divisors is an integer number (403683997).

Almost surely, 2^807367993 is an apocalyptic number.

It is an amenable number.

807367993 is a deficient number, since it is larger than the sum of its proper divisors (1).

807367993 is an equidigital number, since it uses as much as digits as its factorization.

807367993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 807367993 is about 28414.2216680310. The cubic root of 807367993 is about 931.1589947674.

The spelling of 807367993 in words is "eight hundred seven million, three hundred sixty-seven thousand, nine hundred ninety-three".