835826381 has 4 divisors (see below), whose sum is σ = 900120732. Its totient is φ = 771532032.

The previous prime is 835826363. The next prime is 835826401. The reversal of 835826381 is 183628538.

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

It can be written as a sum of positive squares in 2 ways, for example, as 130074025 + 705752356 = 11405^2 + 26566^2 .

It is a cyclic number.

It is not a de Polignac number, because 835826381 - 2⁶ = 835826317 is a prime.

It is a super-2 number, since 2×835826381² = 1397211478351114322, 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 (835825381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32147156 + ... + 32147181.

It is an arithmetic number, because the mean of its divisors is an integer number (225030183).

Almost surely, 2^835826381 is an apocalyptic number.

It is an amenable number.

835826381 is a deficient number, since it is larger than the sum of its proper divisors (64294351).

835826381 is a wasteful number, since it uses less digits than its factorization.

835826381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64294350.

The product of its digits is 276480, while the sum is 44.

The square root of 835826381 is about 28910.6620643665. The cubic root of 835826381 is about 941.9735136943.

The spelling of 835826381 in words is "eight hundred thirty-five million, eight hundred twenty-six thousand, three hundred eighty-one".