836787253 has 2 divisors, whose sum is σ = 836787254. Its totient is φ = 836787252.

The previous prime is 836787191. The next prime is 836787271. The reversal of 836787253 is 352787638.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443439364 + 393347889 = 21058^2 + 19833^2 .

It is a cyclic number.

It is not a de Polignac number, because 836787253 - 2¹³ = 836779061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 836787197 and 836787206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (836787293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418393626 + 418393627.

It is an arithmetic number, because the mean of its divisors is an integer number (418393627).

Almost surely, 2^836787253 is an apocalyptic number.

It is an amenable number.

836787253 is a deficient number, since it is larger than the sum of its proper divisors (1).

836787253 is an equidigital number, since it uses as much as digits as its factorization.

836787253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 49.

The square root of 836787253 is about 28927.2752432717. The cubic root of 836787253 is about 942.3343419609.

The spelling of 836787253 in words is "eight hundred thirty-six million, seven hundred eighty-seven thousand, two hundred fifty-three".