803230991 has 2 divisors, whose sum is σ = 803230992. Its totient is φ = 803230990.

The previous prime is 803230973. The next prime is 803231003. The reversal of 803230991 is 199032308.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-803230991 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (803230921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401615495 + 401615496.

It is an arithmetic number, because the mean of its divisors is an integer number (401615496).

Almost surely, 2^803230991 is an apocalyptic number.

803230991 is a deficient number, since it is larger than the sum of its proper divisors (1).

803230991 is an equidigital number, since it uses as much as digits as its factorization.

803230991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 803230991 is about 28341.3300852307. The cubic root of 803230991 is about 929.5658323361.

The spelling of 803230991 in words is "eight hundred three million, two hundred thirty thousand, nine hundred ninety-one".