71369943 has 16 divisors (see below), whose sum is σ = 100561920. Its totient is φ = 44931744.

The previous prime is 71369917. The next prime is 71369951. The reversal of 71369943 is 34996317.

It is not a de Polignac number, because 71369943 - 2¹⁰ = 71368919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71369895 and 71369904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71369953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1096 + ... + 11997.

It is an arithmetic number, because the mean of its divisors is an integer number (6285120).

Almost surely, 2^71369943 is an apocalyptic number.

71369943 is a deficient number, since it is larger than the sum of its proper divisors (29191977).

71369943 is a wasteful number, since it uses less digits than its factorization.

71369943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13198.

The product of its digits is 122472, while the sum is 42.

The square root of 71369943 is about 8448.0733306476. The cubic root of 71369943 is about 414.7997156168.

The spelling of 71369943 in words is "seventy-one million, three hundred sixty-nine thousand, nine hundred forty-three".