834090399 has 8 divisors (see below), whose sum is σ = 1235689520. Its totient is φ = 556060248.

The previous prime is 834090379. The next prime is 834090401. The reversal of 834090399 is 993090438.

It is not a de Polignac number, because 834090399 - 2⁸ = 834090143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834090349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15446092 + ... + 15446145.

It is an arithmetic number, because the mean of its divisors is an integer number (154461190).

Almost surely, 2^834090399 is an apocalyptic number.

834090399 is a deficient number, since it is larger than the sum of its proper divisors (401599121).

834090399 is a wasteful number, since it uses less digits than its factorization.

834090399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30892246 (or 30892240 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 834090399 is about 28880.6232446601. The cubic root of 834090399 is about 941.3209130555.

The spelling of 834090399 in words is "eight hundred thirty-four million, ninety thousand, three hundred ninety-nine".