796249991 has 2 divisors, whose sum is σ = 796249992. Its totient is φ = 796249990.

The previous prime is 796249969. The next prime is 796250047. The reversal of 796249991 is 199942697.

It is an a-pointer prime, because the next prime (796250047) can be obtained adding 796249991 to its sum of digits (56).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 796249991 - 2¹⁸ = 795987847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (796249901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 398124995 + 398124996.

It is an arithmetic number, because the mean of its divisors is an integer number (398124996).

Almost surely, 2^796249991 is an apocalyptic number.

796249991 is a deficient number, since it is larger than the sum of its proper divisors (1).

796249991 is an equidigital number, since it uses as much as digits as its factorization.

796249991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2204496, while the sum is 56.

The square root of 796249991 is about 28217.9019595717. The cubic root of 796249991 is about 926.8649943985.

The spelling of 796249991 in words is "seven hundred ninety-six million, two hundred forty-nine thousand, nine hundred ninety-one".