71424881 has 16 divisors (see below), whose sum is σ = 79641600. Its totient is φ = 63510480.

The previous prime is 71424853. The next prime is 71424887. The reversal of 71424881 is 18842417.

It is not a de Polignac number, because 71424881 - 2²⁶ = 4316017 is a prime.

It is a super-2 number, since 2×71424881² = 10203027251728322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71424887) 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, 146420 + ... + 146906.

It is an arithmetic number, because the mean of its divisors is an integer number (4977600).

Almost surely, 2^71424881 is an apocalyptic number.

It is an amenable number.

71424881 is a deficient number, since it is larger than the sum of its proper divisors (8216719).

71424881 is a wasteful number, since it uses less digits than its factorization.

71424881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its digits is 14336, while the sum is 35.

The square root of 71424881 is about 8451.3242157664. The cubic root of 71424881 is about 414.9061209238.

The spelling of 71424881 in words is "seventy-one million, four hundred twenty-four thousand, eight hundred eighty-one".