834439725 has 180 divisors, whose sum is σ = 1857735264. Its totient is φ = 362517120.

The previous prime is 834439699. The next prime is 834439729. The reversal of 834439725 is 527934438.

834439725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 834439725 - 2⁷ = 834439597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834439729) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 19405554 + ... + 19405596.

Almost surely, 2^834439725 is an apocalyptic number.

It is an amenable number.

834439725 is an abundant number, since it is smaller than the sum of its proper divisors (1023295539).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

834439725 is a wasteful number, since it uses less digits than its factorization.

834439725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 95 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 834439725 is about 28886.6703688743. The cubic root of 834439725 is about 941.4523064771.

The spelling of 834439725 in words is "eight hundred thirty-four million, four hundred thirty-nine thousand, seven hundred twenty-five".