82091026 has 8 divisors (see below), whose sum is σ = 123665724. Its totient is φ = 40869120.

The previous prime is 82091017. The next prime is 82091047. The reversal of 82091026 is 62019028.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76545001 + 5546025 = 8749^2 + 2355^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 82090985 and 82091003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87615 + ... + 88546.

Almost surely, 2^82091026 is an apocalyptic number.

82091026 is a deficient number, since it is larger than the sum of its proper divisors (41574698).

82091026 is a wasteful number, since it uses less digits than its factorization.

82091026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176396.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 82091026 is about 9060.4098141309. The cubic root of 82091026 is about 434.6088455410.

The spelling of 82091026 in words is "eighty-two million, ninety-one thousand, twenty-six".