835390625 has 48 divisors (see below), whose sum is σ = 1139254896. Its totient is φ = 612000000.

The previous prime is 835390597. The next prime is 835390631. The reversal of 835390625 is 526093538.

It can be written as a sum of positive squares in 24 ways, for example, as 439698961 + 395691664 = 20969^2 + 19892^2 .

It is not a de Polignac number, because 835390625 - 2⁶ = 835390561 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22578107 + ... + 22578143.

It is an arithmetic number, because the mean of its divisors is an integer number (23734477).

Almost surely, 2^835390625 is an apocalyptic number.

835390625 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

835390625 is a deficient number, since it is larger than the sum of its proper divisors (303864271).

835390625 is an frugal number, since it uses more digits than its factorization.

835390625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 835390625 is about 28903.1248310628. The cubic root of 835390625 is about 941.8097867238.

The spelling of 835390625 in words is "eight hundred thirty-five million, three hundred ninety thousand, six hundred twenty-five".