826369139 has 16 divisors (see below), whose sum is σ = 891869184. Its totient is φ = 763435200.

The previous prime is 826369127. The next prime is 826369153. The reversal of 826369139 is 931963628.

It is not a de Polignac number, because 826369139 - 2²⁸ = 557933683 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 826369093 and 826369102.

It is not an unprimeable number, because it can be changed into a prime (826369169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541832 + ... + 543354.

It is an arithmetic number, because the mean of its divisors is an integer number (55741824).

Almost surely, 2^826369139 is an apocalyptic number.

826369139 is a deficient number, since it is larger than the sum of its proper divisors (65500045).

826369139 is a wasteful number, since it uses less digits than its factorization.

826369139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338.

The product of its digits is 419904, while the sum is 47.

The square root of 826369139 is about 28746.6370033088. The cubic root of 826369139 is about 938.4072692353.

The spelling of 826369139 in words is "eight hundred twenty-six million, three hundred sixty-nine thousand, one hundred thirty-nine".