811286026 has 4 divisors (see below), whose sum is σ = 1216929042. Its totient is φ = 405643012.

The previous prime is 811286023. The next prime is 811286057. The reversal of 811286026 is 620682118.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 533563801 + 277722225 = 23099^2 + 16665^2 .

It is a junction number, because it is equal to n+sod(n) for n = 811285982 and 811286000.

It is not an unprimeable number, because it can be changed into a prime (811286023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202821505 + ... + 202821508.

Almost surely, 2^811286026 is an apocalyptic number.

811286026 is a deficient number, since it is larger than the sum of its proper divisors (405643016).

811286026 is a wasteful number, since it uses less digits than its factorization.

811286026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405643015.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 811286026 is about 28483.0831547429. The cubic root of 811286026 is about 932.6628220165.

The spelling of 811286026 in words is "eight hundred eleven million, two hundred eighty-six thousand, twenty-six".