834342385 has 4 divisors (see below), whose sum is σ = 1001210868. Its totient is φ = 667473904.

The previous prime is 834342367. The next prime is 834342389. The reversal of 834342385 is 583243438.

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 284158449 + 550183936 = 16857^2 + 23456^2 .

It is a cyclic number.

It is not a de Polignac number, because 834342385 - 2⁹ = 834341873 is a prime.

It is a super-2 number, since 2×834342385² = 1392254430814976450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (834342389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83434234 + ... + 83434243.

It is an arithmetic number, because the mean of its divisors is an integer number (250302717).

Almost surely, 2^834342385 is an apocalyptic number.

It is an amenable number.

834342385 is a deficient number, since it is larger than the sum of its proper divisors (166868483).

834342385 is a wasteful number, since it uses less digits than its factorization.

834342385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166868482.

The product of its digits is 276480, while the sum is 40.

The square root of 834342385 is about 28884.9854595774. The cubic root of 834342385 is about 941.4156972696.

The spelling of 834342385 in words is "eight hundred thirty-four million, three hundred forty-two thousand, three hundred eighty-five".