766348091 has 2 divisors, whose sum is σ = 766348092. Its totient is φ = 766348090.

The previous prime is 766348061. The next prime is 766348127. The reversal of 766348091 is 190843667.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766348091 is a prime.

It is not a weakly prime, because it can be changed into another prime (766348001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383174045 + 383174046.

It is an arithmetic number, because the mean of its divisors is an integer number (383174046).

Almost surely, 2^766348091 is an apocalyptic number.

766348091 is a deficient number, since it is larger than the sum of its proper divisors (1).

766348091 is an equidigital number, since it uses as much as digits as its factorization.

766348091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 766348091 is about 27682.9928114718. The cubic root of 766348091 is about 915.1143380862.

The spelling of 766348091 in words is "seven hundred sixty-six million, three hundred forty-eight thousand, ninety-one".