71664341 has 4 divisors (see below), whose sum is σ = 81902112. Its totient is φ = 61426572.

The previous prime is 71664323. The next prime is 71664349. The reversal of 71664341 is 14346617.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71664341 - 2¹⁴ = 71647957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71664298 and 71664307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71664349) 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 3 ways as a sum of consecutive naturals, for example, 5118875 + ... + 5118888.

It is an arithmetic number, because the mean of its divisors is an integer number (20475528).

Almost surely, 2^71664341 is an apocalyptic number.

It is an amenable number.

71664341 is a deficient number, since it is larger than the sum of its proper divisors (10237771).

71664341 is a wasteful number, since it uses less digits than its factorization.

71664341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10237770.

The product of its digits is 12096, while the sum is 32.

The square root of 71664341 is about 8465.4793721324. The cubic root of 71664341 is about 415.3692769626.

The spelling of 71664341 in words is "seventy-one million, six hundred sixty-four thousand, three hundred forty-one".