71385628 has 12 divisors (see below), whose sum is σ = 125134912. Its totient is φ = 35632800.

The previous prime is 71385623. The next prime is 71385637. The reversal of 71385628 is 82658317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71385623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12273 + ... + 17128.

Almost surely, 2^71385628 is an apocalyptic number.

It is an amenable number.

71385628 is a deficient number, since it is larger than the sum of its proper divisors (53749284).

71385628 is a wasteful number, since it uses less digits than its factorization.

71385628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30012 (or 30010 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 71385628 is about 8449.0015978221. The cubic root of 71385628 is about 414.8301002890.

The spelling of 71385628 in words is "seventy-one million, three hundred eighty-five thousand, six hundred twenty-eight".