70368517 has 4 divisors (see below), whose sum is σ = 70630380. Its totient is φ = 70106656.

The previous prime is 70368503. The next prime is 70368527. The reversal of 70368517 is 71586307.

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 17355556 + 53012961 = 4166^2 + 7281^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70368517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70368527) 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, 130528 + ... + 131065.

It is an arithmetic number, because the mean of its divisors is an integer number (17657595).

Almost surely, 2^70368517 is an apocalyptic number.

It is an amenable number.

70368517 is a deficient number, since it is larger than the sum of its proper divisors (261863).

70368517 is a wasteful number, since it uses less digits than its factorization.

70368517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261862.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 70368517 is about 8388.5944591451. The cubic root of 70368517 is about 412.8504853480.

The spelling of 70368517 in words is "seventy million, three hundred sixty-eight thousand, five hundred seventeen".