835138823 has 2 divisors, whose sum is σ = 835138824. Its totient is φ = 835138822.

The previous prime is 835138807. The next prime is 835138831. The reversal of 835138823 is 328831538.

835138823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 835138823 - 2⁴ = 835138807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (835138883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417569411 + 417569412.

It is an arithmetic number, because the mean of its divisors is an integer number (417569412).

Almost surely, 2^835138823 is an apocalyptic number.

835138823 is a deficient number, since it is larger than the sum of its proper divisors (1).

835138823 is an equidigital number, since it uses as much as digits as its factorization.

835138823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 138240, while the sum is 41.

The square root of 835138823 is about 28898.7685377768. The cubic root of 835138823 is about 941.7151509882.

It can be divided in two parts, 8351 and 38823, that added together give a palindrome (47174).

The spelling of 835138823 in words is "eight hundred thirty-five million, one hundred thirty-eight thousand, eight hundred twenty-three".