71479111 has 4 divisors (see below), whose sum is σ = 77977224. Its totient is φ = 64981000.

The previous prime is 71479099. The next prime is 71479123. The reversal of 71479111 is 11197417.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (71479099) and next prime (71479123).

It is a cyclic number.

It is not a de Polignac number, because 71479111 - 2⁷ = 71478983 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71479141) 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, 3249040 + ... + 3249061.

It is an arithmetic number, because the mean of its divisors is an integer number (19494306).

Almost surely, 2^71479111 is an apocalyptic number.

71479111 is a deficient number, since it is larger than the sum of its proper divisors (6498113).

71479111 is a wasteful number, since it uses less digits than its factorization.

71479111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6498112.

The product of its digits is 1764, while the sum is 31.

The square root of 71479111 is about 8454.5319799502. The cubic root of 71479111 is about 415.0111014595.

The spelling of 71479111 in words is "seventy-one million, four hundred seventy-nine thousand, one hundred eleven".