70704813 has 8 divisors (see below), whose sum is σ = 97524000. Its totient is φ = 45511088.

The previous prime is 70704811. The next prime is 70704883. The reversal of 70704813 is 31840707.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 70704813 - 2¹ = 70704811 is a prime.

It is a super-3 number, since 3×70704813³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70704811) 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, 406263 + ... + 406436.

It is an arithmetic number, because the mean of its divisors is an integer number (12190500).

Almost surely, 2^70704813 is an apocalyptic number.

It is an amenable number.

70704813 is a deficient number, since it is larger than the sum of its proper divisors (26819187).

70704813 is a wasteful number, since it uses less digits than its factorization.

70704813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812731.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 70704813 is about 8408.6154032635. The cubic root of 70704813 is about 413.5071207432.

It can be divided in two parts, 70704 and 813, that added together give a palindrome (71517).

The spelling of 70704813 in words is "seventy million, seven hundred four thousand, eight hundred thirteen".