70656271 has 8 divisors (see below), whose sum is σ = 80969504. Its totient is φ = 60397920.

The previous prime is 70656259. The next prime is 70656277. The reversal of 70656271 is 17265607.

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 70656271 - 2¹¹ = 70654223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70656277) 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 7 ways as a sum of consecutive naturals, for example, 10920 + ... + 16141.

It is an arithmetic number, because the mean of its divisors is an integer number (10121188).

Almost surely, 2^70656271 is an apocalyptic number.

70656271 is a deficient number, since it is larger than the sum of its proper divisors (10313233).

70656271 is a wasteful number, since it uses less digits than its factorization.

70656271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27441.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 70656271 is about 8405.7284633754. The cubic root of 70656271 is about 413.4124687335.

The spelling of 70656271 in words is "seventy million, six hundred fifty-six thousand, two hundred seventy-one".