71628272 has 10 divisors (see below), whose sum is σ = 138779808. Its totient is φ = 35814128.

The previous prime is 71628199. The next prime is 71628317. The reversal of 71628272 is 27282617.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2238368 + ... + 2238399.

Almost surely, 2^71628272 is an apocalyptic number.

It is an amenable number.

71628272 is a deficient number, since it is larger than the sum of its proper divisors (67151536).

71628272 is a wasteful number, since it uses less digits than its factorization.

71628272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4476775 (or 4476769 counting only the distinct ones).

The product of its digits is 18816, while the sum is 35.

The square root of 71628272 is about 8463.3487462115. The cubic root of 71628272 is about 415.2995794978.

The spelling of 71628272 in words is "seventy-one million, six hundred twenty-eight thousand, two hundred seventy-two".