91706000623 has 2 divisors, whose sum is σ = 91706000624. Its totient is φ = 91706000622.

The previous prime is 91706000579. The next prime is 91706000651. The reversal of 91706000623 is 32600060719.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91706000623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91706000653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45853000311 + 45853000312.

It is an arithmetic number, because the mean of its divisors is an integer number (45853000312).

Almost surely, 2^91706000623 is an apocalyptic number.

91706000623 is a deficient number, since it is larger than the sum of its proper divisors (1).

91706000623 is an equidigital number, since it uses as much as digits as its factorization.

91706000623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 91706000623 in words is "ninety-one billion, seven hundred six million, six hundred twenty-three", and thus it is an aban number.