70911 has 6 divisors (see below), whose sum is σ = 102440. Its totient is φ = 47268.

The previous prime is 70901. The next prime is 70913. The reversal of 70911 is 11907.

70911 is nontrivially palindromic in base 12 and base 14.

It is not a de Polignac number, because 70911 - 2⁵ = 70879 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70913) 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 5 ways as a sum of consecutive naturals, for example, 3931 + ... + 3948.

2⁷⁰⁹¹¹ is an apocalyptic number.

70911 is a deficient number, since it is larger than the sum of its proper divisors (31529).

70911 is a wasteful number, since it uses less digits than its factorization.

70911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7885 (or 7882 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 18.

The square root of 70911 is about 266.2911939963. The cubic root of 70911 is about 41.3908682513.

The spelling of 70911 in words is "seventy thousand, nine hundred eleven".