836985249 has 12 divisors (see below), whose sum is σ = 1261543296. Its totient is φ = 533729592.

The previous prime is 836985229. The next prime is 836985257. The reversal of 836985249 is 942589638.

It is not a de Polignac number, because 836985249 - 2¹⁵ = 836952481 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 836985195 and 836985204.

It is not an unprimeable number, because it can be changed into a prime (836985229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2021497 + ... + 2021910.

It is an arithmetic number, because the mean of its divisors is an integer number (105128608).

Almost surely, 2^836985249 is an apocalyptic number.

It is an amenable number.

836985249 is a deficient number, since it is larger than the sum of its proper divisors (424558047).

836985249 is a wasteful number, since it uses less digits than its factorization.

836985249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4043436 (or 4043433 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 836985249 is about 28930.6973472815. The cubic root of 836985249 is about 942.4086594237.

The spelling of 836985249 in words is "eight hundred thirty-six million, nine hundred eighty-five thousand, two hundred forty-nine".