81633482 has 8 divisors (see below), whose sum is σ = 139943136. Its totient is φ = 34985772.

The previous prime is 81633467. The next prime is 81633493. The reversal of 81633482 is 28433618.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2915468 + ... + 2915495.

It is an arithmetic number, because the mean of its divisors is an integer number (17492892).

Almost surely, 2^81633482 is an apocalyptic number.

81633482 is a deficient number, since it is larger than the sum of its proper divisors (58309654).

81633482 is a wasteful number, since it uses less digits than its factorization.

81633482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5830972.

The product of its digits is 27648, while the sum is 35.

The square root of 81633482 is about 9035.1249022911. The cubic root of 81633482 is about 433.7998928841.

The spelling of 81633482 in words is "eighty-one million, six hundred thirty-three thousand, four hundred eighty-two".