826394117 has 4 divisors (see below), whose sum is σ = 862324320. Its totient is φ = 790463916.

The previous prime is 826394111. The next prime is 826394137. The reversal of 826394117 is 711493628.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 826394117 - 2¹⁰ = 826393093 is a prime.

It is a super-2 number, since 2×826394117² = 1365854473224419378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826394111) by changing a digit.

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, 17965067 + ... + 17965112.

It is an arithmetic number, because the mean of its divisors is an integer number (215581080).

Almost surely, 2^826394117 is an apocalyptic number.

It is an amenable number.

826394117 is a deficient number, since it is larger than the sum of its proper divisors (35930203).

826394117 is a wasteful number, since it uses less digits than its factorization.

826394117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35930202.

The product of its digits is 72576, while the sum is 41.

The square root of 826394117 is about 28747.0714508452. The cubic root of 826394117 is about 938.4167239691.

The spelling of 826394117 in words is "eight hundred twenty-six million, three hundred ninety-four thousand, one hundred seventeen".