70655109 has 12 divisors (see below), whose sum is σ = 109587744. Its totient is φ = 40374264.

The previous prime is 70655093. The next prime is 70655119. The reversal of 70655109 is 90155607.

It is not a de Polignac number, because 70655109 - 2⁴ = 70655093 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 70655109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70655119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240177 + ... + 240470.

It is an arithmetic number, because the mean of its divisors is an integer number (9132312).

Almost surely, 2^70655109 is an apocalyptic number.

It is an amenable number.

70655109 is a deficient number, since it is larger than the sum of its proper divisors (38932635).

70655109 is a wasteful number, since it uses less digits than its factorization.

70655109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480664 (or 480657 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 70655109 is about 8405.6593435613. The cubic root of 70655109 is about 413.4102024193.

The spelling of 70655109 in words is "seventy million, six hundred fifty-five thousand, one hundred nine".