70064791 has 4 divisors (see below), whose sum is σ = 71958472. Its totient is φ = 68171112.

The previous prime is 70064779. The next prime is 70064833. The reversal of 70064791 is 19746007.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19746007 = 569 ⋅34703.

It is a cyclic number.

It is not a de Polignac number, because 70064791 - 2⁷ = 70064663 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 (70064711) 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, 946785 + ... + 946858.

It is an arithmetic number, because the mean of its divisors is an integer number (17989618).

Almost surely, 2^70064791 is an apocalyptic number.

70064791 is a deficient number, since it is larger than the sum of its proper divisors (1893681).

70064791 is a wasteful number, since it uses less digits than its factorization.

70064791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893680.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 70064791 is about 8370.4713726289. The cubic root of 70064791 is about 412.2556441972.

The spelling of 70064791 in words is "seventy million, sixty-four thousand, seven hundred ninety-one".