81282926 has 8 divisors (see below), whose sum is σ = 123744360. Its totient is φ = 40034808.

The previous prime is 81282917. The next prime is 81282997. The reversal of 81282926 is 62928218.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 81282926.

It is a congruent number.

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, 303161 + ... + 303428.

It is an arithmetic number, because the mean of its divisors is an integer number (15468045).

Almost surely, 2^81282926 is an apocalyptic number.

81282926 is a deficient number, since it is larger than the sum of its proper divisors (42461434).

81282926 is a wasteful number, since it uses less digits than its factorization.

81282926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606658.

The product of its digits is 27648, while the sum is 38.

The square root of 81282926 is about 9015.7044095290. The cubic root of 81282926 is about 433.1780510025.

It can be divided in two parts, 812 and 82926, that added together give a palindrome (83738).

The spelling of 81282926 in words is "eighty-one million, two hundred eighty-two thousand, nine hundred twenty-six".