69808091 has 2 divisors, whose sum is σ = 69808092. Its totient is φ = 69808090.

The previous prime is 69808073. The next prime is 69808093. The reversal of 69808091 is 19080896.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69808091 is a prime.

It is a super-5 number, since 5×69808091⁵ (a number of 40 digits) contains 55555 as substring.

Together with 69808093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (69808093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34904045 + 34904046.

It is an arithmetic number, because the mean of its divisors is an integer number (34904046).

Almost surely, 2^69808091 is an apocalyptic number.

69808091 is a deficient number, since it is larger than the sum of its proper divisors (1).

69808091 is an equidigital number, since it uses as much as digits as its factorization.

69808091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 69808091 is about 8355.1236376250. The cubic root of 69808091 is about 411.7515606380.

The spelling of 69808091 in words is "sixty-nine million, eight hundred eight thousand, ninety-one".