70655017 has 4 divisors (see below), whose sum is σ = 70683076. Its totient is φ = 70626960.

The previous prime is 70654967. The next prime is 70655023. The reversal of 70655017 is 71055607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71055607 = 7 ⋅10150801.

It can be written as a sum of positive squares in 2 ways, for example, as 29387241 + 41267776 = 5421^2 + 6424^2 .

It is a cyclic number.

It is not a de Polignac number, because 70655017 - 2⁷ = 70654889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70655017.

It is not an unprimeable number, because it can be changed into a prime (70655027) 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 3 ways as a sum of consecutive naturals, for example, 9834 + ... + 15427.

It is an arithmetic number, because the mean of its divisors is an integer number (17670769).

Almost surely, 2^70655017 is an apocalyptic number.

It is an amenable number.

70655017 is a deficient number, since it is larger than the sum of its proper divisors (28059).

70655017 is a wasteful number, since it uses less digits than its factorization.

70655017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28058.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 70655017 is about 8405.6538710561. The cubic root of 70655017 is about 413.4100229854.

The spelling of 70655017 in words is "seventy million, six hundred fifty-five thousand, seventeen".