70072117 has 8 divisors (see below), whose sum is σ = 73188000. Its totient is φ = 67020624.

The previous prime is 70072111. The next prime is 70072193. The reversal of 70072117 is 71127007.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70072117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70072091 and 70072100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70072111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13867 + ... + 18232.

It is an arithmetic number, because the mean of its divisors is an integer number (9148500).

Almost surely, 2^70072117 is an apocalyptic number.

It is an amenable number.

70072117 is a deficient number, since it is larger than the sum of its proper divisors (3115883).

70072117 is a wasteful number, since it uses less digits than its factorization.

70072117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32195.

The product of its (nonzero) digits is 686, while the sum is 25.

The square root of 70072117 is about 8370.9089709541. The cubic root of 70072117 is about 412.2700122297.

The spelling of 70072117 in words is "seventy million, seventy-two thousand, one hundred seventeen".