81882106 has 8 divisors (see below), whose sum is σ = 123074784. Its totient is φ = 40857180.

The previous prime is 81882089. The next prime is 81882113. The reversal of 81882106 is 60128818.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40710 + ... + 42673.

It is an arithmetic number, because the mean of its divisors is an integer number (15384348).

Almost surely, 2^81882106 is an apocalyptic number.

81882106 is a deficient number, since it is larger than the sum of its proper divisors (41192678).

81882106 is a wasteful number, since it uses less digits than its factorization.

81882106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83876.

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 81882106 is about 9048.8731895192. The cubic root of 81882106 is about 434.2398420892.

The spelling of 81882106 in words is "eighty-one million, eight hundred eighty-two thousand, one hundred six".