81326926 has 8 divisors (see below), whose sum is σ = 122273424. Its totient is φ = 40569120.

The previous prime is 81326887. The next prime is 81326953. The reversal of 81326926 is 62962318.

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

It is a super-2 number, since 2×81326926² = 13228137785218952, which contains 22 as substring.

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, 46090 + ... + 47821.

It is an arithmetic number, because the mean of its divisors is an integer number (15284178).

Almost surely, 2^81326926 is an apocalyptic number.

81326926 is a deficient number, since it is larger than the sum of its proper divisors (40946498).

81326926 is a wasteful number, since it uses less digits than its factorization.

81326926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94346.

The product of its digits is 31104, while the sum is 37.

The square root of 81326926 is about 9018.1442658676. The cubic root of 81326926 is about 433.2561994201.

The spelling of 81326926 in words is "eighty-one million, three hundred twenty-six thousand, nine hundred twenty-six".