70655069 has 2 divisors, whose sum is σ = 70655070. Its totient is φ = 70655068.

The previous prime is 70655041. The next prime is 70655071. The reversal of 70655069 is 96055607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38278969 + 32376100 = 6187^2 + 5690^2 .

It is an emirp because it is prime and its reverse (96055607) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70655069 - 2⁸ = 70654813 is a prime.

It is a super-2 number, since 2×70655069² = 9984277550789522, which contains 22 as substring.

Together with 70655071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70655029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35327534 + 35327535.

It is an arithmetic number, because the mean of its divisors is an integer number (35327535).

Almost surely, 2^70655069 is an apocalyptic number.

It is an amenable number.

70655069 is a deficient number, since it is larger than the sum of its proper divisors (1).

70655069 is an equidigital number, since it uses as much as digits as its factorization.

70655069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 70655069 is about 8405.6569642117. The cubic root of 70655069 is about 413.4101244046.

The spelling of 70655069 in words is "seventy million, six hundred fifty-five thousand, sixty-nine".