70655605 has 8 divisors (see below), whose sum is σ = 85948632. Its totient is φ = 55749888.

The previous prime is 70655597. The next prime is 70655639. The reversal of 70655605 is 50655607.

It can be written as a sum of positive squares in 4 ways, for example, as 23444964 + 47210641 = 4842^2 + 6871^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70655605 - 2³ = 70655597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96424 + ... + 97153.

It is an arithmetic number, because the mean of its divisors is an integer number (10743579).

Almost surely, 2^70655605 is an apocalyptic number.

It is an amenable number.

70655605 is a deficient number, since it is larger than the sum of its proper divisors (15293027).

70655605 is a wasteful number, since it uses less digits than its factorization.

70655605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193655.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 70655605 is about 8405.6888474414. The cubic root of 70655605 is about 413.4111697991.

The spelling of 70655605 in words is "seventy million, six hundred fifty-five thousand, six hundred five".