81882352 has 20 divisors (see below), whose sum is σ = 158815480. Its totient is φ = 40897728.

The previous prime is 81882349. The next prime is 81882389. The reversal of 81882352 is 25328818.

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 in 3 ways as a sum of consecutive naturals, for example, 17299 + ... + 21517.

It is an arithmetic number, because the mean of its divisors is an integer number (7940774).

Almost surely, 2^81882352 is an apocalyptic number.

It is an amenable number.

81882352 is a deficient number, since it is larger than the sum of its proper divisors (76933128).

81882352 is a wasteful number, since it uses less digits than its factorization.

81882352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5440 (or 5434 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 81882352 is about 9048.8867823617. The cubic root of 81882352 is about 434.2402769538.

The spelling of 81882352 in words is "eighty-one million, eight hundred eighty-two thousand, three hundred fifty-two".