71428116 has 12 divisors (see below), whose sum is σ = 166665632. Its totient is φ = 23809368.

The previous prime is 71428099. The next prime is 71428121. The reversal of 71428116 is 61182417.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2976160 + ... + 2976183.

Almost surely, 2^71428116 is an apocalyptic number.

It is an amenable number.

71428116 is an abundant number, since it is smaller than the sum of its proper divisors (95237516).

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

71428116 is a wasteful number, since it uses less digits than its factorization.

71428116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5952350 (or 5952348 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 71428116 is about 8451.5156037246. The cubic root of 71428116 is about 414.9123848523.

The spelling of 71428116 in words is "seventy-one million, four hundred twenty-eight thousand, one hundred sixteen".