71429964 has 24 divisors (see below), whose sum is σ = 166813248. Its totient is φ = 23789520.

The previous prime is 71429959. The next prime is 71429993. The reversal of 71429964 is 46992417.

It is an unprimeable number.

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, 19779 + ... + 23109.

It is an arithmetic number, because the mean of its divisors is an integer number (6950552).

Almost surely, 2^71429964 is an apocalyptic number.

It is an amenable number.

71429964 is an abundant number, since it is smaller than the sum of its proper divisors (95383284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71429964 is a wasteful number, since it uses less digits than its factorization.

71429964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5125 (or 5123 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 71429964 is about 8451.6249325204. The cubic root of 71429964 is about 414.9159630486.

The spelling of 71429964 in words is "seventy-one million, four hundred twenty-nine thousand, nine hundred sixty-four".