70208417 has 4 divisors (see below), whose sum is σ = 70614420. Its totient is φ = 69802416.

The previous prime is 70208399. The next prime is 70208431. The reversal of 70208417 is 71480207.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48455521 + 21752896 = 6961^2 + 4664^2 .

It is a cyclic number.

It is not a de Polignac number, because 70208417 - 2¹⁴ = 70192033 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 70208417.

It is not an unprimeable number, because it can be changed into a prime (70205417) 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 in 3 ways as a sum of consecutive naturals, for example, 202742 + ... + 203087.

It is an arithmetic number, because the mean of its divisors is an integer number (17653605).

Almost surely, 2^70208417 is an apocalyptic number.

It is an amenable number.

70208417 is a deficient number, since it is larger than the sum of its proper divisors (406003).

70208417 is a wasteful number, since it uses less digits than its factorization.

70208417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406002.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 70208417 is about 8379.0463061138. The cubic root of 70208417 is about 412.5371465782.

The spelling of 70208417 in words is "seventy million, two hundred eight thousand, four hundred seventeen".