71986941 has 64 divisors (see below), whose sum is σ = 123594240. Its totient is φ = 41057280.

The previous prime is 71986931. The next prime is 71986949. The reversal of 71986941 is 14968917.

It is a happy number.

It is not a de Polignac number, because 71986941 - 2⁵ = 71986909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71986949) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 298581 + ... + 298821.

It is an arithmetic number, because the mean of its divisors is an integer number (1931160).

Almost surely, 2^71986941 is an apocalyptic number.

It is an amenable number.

71986941 is a deficient number, since it is larger than the sum of its proper divisors (51607299).

71986941 is a wasteful number, since it uses less digits than its factorization.

71986941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 317 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 71986941 is about 8484.5118303884. The cubic root of 71986941 is about 415.9916114094.

It can be divided in two parts, 71986 and 941, that added together give a palindrome (72927).

The spelling of 71986941 in words is "seventy-one million, nine hundred eighty-six thousand, nine hundred forty-one".