70008173 has 4 divisors (see below), whose sum is σ = 70687968. Its totient is φ = 69328380.

The previous prime is 70008143. The next prime is 70008209. The reversal of 70008173 is 37180007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70008173 - 2⁶ = 70008109 is a prime.

It is a super-3 number, since 3×70008173³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70008143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339743 + ... + 339948.

It is an arithmetic number, because the mean of its divisors is an integer number (17671992).

Almost surely, 2^70008173 is an apocalyptic number.

It is an amenable number.

70008173 is a deficient number, since it is larger than the sum of its proper divisors (679795).

70008173 is a wasteful number, since it uses less digits than its factorization.

70008173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679794.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 70008173 is about 8367.0886812559. The cubic root of 70008173 is about 412.1445690065.

The spelling of 70008173 in words is "seventy million, eight thousand, one hundred seventy-three".