71305084 has 48 divisors (see below), whose sum is σ = 135475200. Its totient is φ = 32760000.

The previous prime is 71305067. The next prime is 71305093. The reversal of 71305084 is 48050317.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283959 + ... + 284209.

It is an arithmetic number, because the mean of its divisors is an integer number (2822400).

Almost surely, 2^71305084 is an apocalyptic number.

It is an amenable number.

71305084 is a deficient number, since it is larger than the sum of its proper divisors (64170116).

71305084 is a wasteful number, since it uses less digits than its factorization.

71305084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 71305084 is about 8444.2337722259. The cubic root of 71305084 is about 414.6740247566.

The spelling of 71305084 in words is "seventy-one million, three hundred five thousand, eighty-four".