71667411 has 8 divisors (see below), whose sum is σ = 100585920. Its totient is φ = 45263592.

The previous prime is 71667389. The next prime is 71667413. The reversal of 71667411 is 11476617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71667411 - 2⁶ = 71667347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71667413) 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 7 ways as a sum of consecutive naturals, for example, 628605 + ... + 628718.

It is an arithmetic number, because the mean of its divisors is an integer number (12573240).

Almost surely, 2^71667411 is an apocalyptic number.

71667411 is a deficient number, since it is larger than the sum of its proper divisors (28918509).

71667411 is a wasteful number, since it uses less digits than its factorization.

71667411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257345.

The product of its digits is 7056, while the sum is 33.

The square root of 71667411 is about 8465.6606948306. The cubic root of 71667411 is about 415.3752081572.

The spelling of 71667411 in words is "seventy-one million, six hundred sixty-seven thousand, four hundred eleven".