70717738 has 32 divisors (see below), whose sum is σ = 131112576. Its totient is φ = 27857088.

The previous prime is 70717733. The next prime is 70717769. The reversal of 70717738 is 83771707.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 70717738.

It is not an unprimeable number, because it can be changed into a prime (70717733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50820 + ... + 52192.

It is an arithmetic number, because the mean of its divisors is an integer number (4097268).

Almost surely, 2^70717738 is an apocalyptic number.

70717738 is a deficient number, since it is larger than the sum of its proper divisors (60394838).

70717738 is a wasteful number, since it uses less digits than its factorization.

70717738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678.

The product of its (nonzero) digits is 57624, while the sum is 40.

The square root of 70717738 is about 8409.3839251160. The cubic root of 70717738 is about 413.5323158875.

The spelling of 70717738 in words is "seventy million, seven hundred seventeen thousand, seven hundred thirty-eight".