81627382 has 16 divisors (see below), whose sum is σ = 130521600. Its totient is φ = 38174760.

The previous prime is 81627361. The next prime is 81627383. The reversal of 81627382 is 28372618.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81627383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10594 + ... + 16597.

It is an arithmetic number, because the mean of its divisors is an integer number (8157600).

Almost surely, 2^81627382 is an apocalyptic number.

81627382 is a deficient number, since it is larger than the sum of its proper divisors (48894218).

81627382 is a wasteful number, since it uses less digits than its factorization.

81627382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27291.

The product of its digits is 32256, while the sum is 37.

The square root of 81627382 is about 9034.7873245583. The cubic root of 81627382 is about 433.7890874923.

The spelling of 81627382 in words is "eighty-one million, six hundred twenty-seven thousand, three hundred eighty-two".