685125838 has 8 divisors (see below), whose sum is σ = 1033994088. Its totient is φ = 340461144.

The previous prime is 685125811. The next prime is 685125869. The reversal of 685125838 is 838521586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050481 + ... + 1051132.

It is an arithmetic number, because the mean of its divisors is an integer number (129249261).

Almost surely, 2^685125838 is an apocalyptic number.

685125838 is a deficient number, since it is larger than the sum of its proper divisors (348868250).

685125838 is a wasteful number, since it uses less digits than its factorization.

685125838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101778.

The product of its digits is 460800, while the sum is 46.

The square root of 685125838 is about 26174.9085576244. The cubic root of 685125838 is about 881.5699583075.

The spelling of 685125838 in words is "six hundred eighty-five million, one hundred twenty-five thousand, eight hundred thirty-eight".