71970935 has 4 divisors (see below), whose sum is σ = 86365128. Its totient is φ = 57576744.

The previous prime is 71970881. The next prime is 71970947. The reversal of 71970935 is 53907917.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53907917 = 7 ⋅7701131.

It is a cyclic number.

It is not a de Polignac number, because 71970935 - 2¹⁴ = 71954551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71970892 and 71970901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7197089 + ... + 7197098.

It is an arithmetic number, because the mean of its divisors is an integer number (21591282).

Almost surely, 2^71970935 is an apocalyptic number.

71970935 is a deficient number, since it is larger than the sum of its proper divisors (14394193).

71970935 is a wasteful number, since it uses less digits than its factorization.

71970935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14394192.

The product of its (nonzero) digits is 59535, while the sum is 41.

The square root of 71970935 is about 8483.5685298110. The cubic root of 71970935 is about 415.9607777832.

The spelling of 71970935 in words is "seventy-one million, nine hundred seventy thousand, nine hundred thirty-five".