70710641 has 4 divisors (see below), whose sum is σ = 70846884. Its totient is φ = 70574400.

The previous prime is 70710623. The next prime is 70710643. The reversal of 70710641 is 14601707.

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 5569600 + 65141041 = 2360^2 + 8071^2 .

It is a cyclic number.

It is not a de Polignac number, because 70710641 - 2²² = 66516337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70710641.

It is not an unprimeable number, because it can be changed into a prime (70710643) 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, 67340 + ... + 68381.

It is an arithmetic number, because the mean of its divisors is an integer number (17711721).

It is the magic constant of a 521 × 521 magic square.

Almost surely, 2^70710641 is an apocalyptic number.

It is an amenable number.

70710641 is a deficient number, since it is larger than the sum of its proper divisors (136243).

70710641 is a wasteful number, since it uses less digits than its factorization.

70710641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136242.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 70710641 is about 8408.9619454484. The cubic root of 70710641 is about 413.5184818429.

The spelling of 70710641 in words is "seventy million, seven hundred ten thousand, six hundred forty-one".