71284004 has 36 divisors (see below), whose sum is σ = 141571584. Its totient is φ = 31350000.

The previous prime is 71283997. The next prime is 71284013. The reversal of 71284004 is 40048217.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12629 + ... + 17379.

It is an arithmetic number, because the mean of its divisors is an integer number (3932544).

Almost surely, 2^71284004 is an apocalyptic number.

It is an amenable number.

71284004 is a deficient number, since it is larger than the sum of its proper divisors (70287580).

71284004 is a wasteful number, since it uses less digits than its factorization.

71284004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808 (or 4795 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 71284004 is about 8442.9854909268. The cubic root of 71284004 is about 414.6331572172.

The spelling of 71284004 in words is "seventy-one million, two hundred eighty-four thousand, four".