71419881 has 16 divisors (see below), whose sum is σ = 103307904. Its totient is φ = 43626624.

The previous prime is 71419849. The next prime is 71419883. The reversal of 71419881 is 18891417.

It is not a de Polignac number, because 71419881 - 2⁵ = 71419849 is a prime.

It is a super-2 number, since 2×71419881² = 10201598804108322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (71419883) 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 15 ways as a sum of consecutive naturals, for example, 1341 + ... + 12026.

It is an arithmetic number, because the mean of its divisors is an integer number (6456744).

Almost surely, 2^71419881 is an apocalyptic number.

It is an amenable number.

71419881 is a deficient number, since it is larger than the sum of its proper divisors (31888023).

71419881 is a wasteful number, since it uses less digits than its factorization.

71419881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13520.

The product of its digits is 16128, while the sum is 39.

The square root of 71419881 is about 8451.0283989583. The cubic root of 71419881 is about 414.8964390548.

The spelling of 71419881 in words is "seventy-one million, four hundred nineteen thousand, eight hundred eighty-one".