835387985 has 16 divisors (see below), whose sum is σ = 1022291712. Its totient is φ = 655166400.

The previous prime is 835387979. The next prime is 835388017. The reversal of 835387985 is 589783538.

It is not a de Polignac number, because 835387985 - 2²⁶ = 768279121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 835387985.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90452 + ... + 99258.

It is an arithmetic number, because the mean of its divisors is an integer number (63893232).

Almost surely, 2^835387985 is an apocalyptic number.

It is an amenable number.

835387985 is a deficient number, since it is larger than the sum of its proper divisors (186903727).

835387985 is a wasteful number, since it uses less digits than its factorization.

835387985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9184.

The product of its digits is 7257600, while the sum is 56.

The square root of 835387985 is about 28903.0791612243. The cubic root of 835387985 is about 941.8087946209.

The spelling of 835387985 in words is "eight hundred thirty-five million, three hundred eighty-seven thousand, nine hundred eighty-five".