70971 has 8 divisors (see below), whose sum is σ = 97104. Its totient is φ = 46080.

The previous prime is 70969. The next prime is 70979. The reversal of 70971 is 17907.

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

It is not a de Polignac number, because 70971 - 2¹ = 70969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70979) 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, 166 + ... + 411.

It is an arithmetic number, because the mean of its divisors is an integer number (12138).

2⁷⁰⁹⁷¹ is an apocalyptic number.

70971 is a deficient number, since it is larger than the sum of its proper divisors (26133).

70971 is a wasteful number, since it uses less digits than its factorization.

70971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621.

The product of its (nonzero) digits is 441, while the sum is 24.

The square root of 70971 is about 266.4038288013. The cubic root of 70971 is about 41.4025389934.

It can be divided in two parts, 709 and 71, that added together give a triangular number (780 = T₃₉).

The spelling of 70971 in words is "seventy thousand, nine hundred seventy-one".