71941667 has 4 divisors (see below), whose sum is σ = 82219056. Its totient is φ = 61664280.

The previous prime is 71941643. The next prime is 71941679. The reversal of 71941667 is 76614917.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76614917 = 5521 ⋅13877.

It is a cyclic number.

It is not a de Polignac number, because 71941667 - 2⁸ = 71941411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71941627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5138684 + ... + 5138697.

It is an arithmetic number, because the mean of its divisors is an integer number (20554764).

Almost surely, 2^71941667 is an apocalyptic number.

71941667 is a deficient number, since it is larger than the sum of its proper divisors (10277389).

71941667 is a wasteful number, since it uses less digits than its factorization.

71941667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10277388.

The product of its digits is 63504, while the sum is 41.

The square root of 71941667 is about 8481.8433727581. The cubic root of 71941667 is about 415.9043846911.

The spelling of 71941667 in words is "seventy-one million, nine hundred forty-one thousand, six hundred sixty-seven".