81460826 has 8 divisors (see below), whose sum is σ = 126404820. Its totient is φ = 39325888.

The previous prime is 81460817. The next prime is 81460829. The reversal of 81460826 is 62806418.

It can be written as a sum of positive squares in 2 ways, for example, as 81450625 + 10201 = 9025^2 + 101^2 .

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

It is not an unprimeable number, because it can be changed into a prime (81460829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 702191 + ... + 702306.

Almost surely, 2^81460826 is an apocalyptic number.

81460826 is a deficient number, since it is larger than the sum of its proper divisors (44943994).

81460826 is a wasteful number, since it uses less digits than its factorization.

81460826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404528.

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 81460826 is about 9025.5651346605. The cubic root of 81460826 is about 433.4938459935.

The spelling of 81460826 in words is "eighty-one million, four hundred sixty thousand, eight hundred twenty-six".