71966344 has 16 divisors (see below), whose sum is σ = 135144720. Its totient is φ = 35927760.

The previous prime is 71966341. The next prime is 71966347. The reversal of 71966344 is 44366917.

It is an interprime number because it is at equal distance from previous prime (71966341) and next prime (71966347).

It is a junction number, because it is equal to n+sod(n) for n = 71966297 and 71966306.

It is not an unprimeable number, because it can be changed into a prime (71966341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122 + ... + 12049.

It is an arithmetic number, because the mean of its divisors is an integer number (8446545).

Almost surely, 2^71966344 is an apocalyptic number.

It is an amenable number.

71966344 is a deficient number, since it is larger than the sum of its proper divisors (63178376).

71966344 is a wasteful number, since it uses less digits than its factorization.

71966344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13860 (or 13856 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 71966344 is about 8483.2979436066. The cubic root of 71966344 is about 415.9519329325.

The spelling of 71966344 in words is "seventy-one million, nine hundred sixty-six thousand, three hundred forty-four".