836130321 has 24 divisors (see below), whose sum is σ = 1369105920. Its totient is φ = 487459296.

The previous prime is 836130307. The next prime is 836130331. The reversal of 836130321 is 123031638.

It is a happy number.

It is not a de Polignac number, because 836130321 - 2⁶ = 836130257 is a prime.

It is a super-2 number, since 2×836130321² = 1398227827391126082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (836130331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185841 + ... + 190286.

It is an arithmetic number, because the mean of its divisors is an integer number (57046080).

Almost surely, 2^836130321 is an apocalyptic number.

It is an amenable number.

836130321 is a deficient number, since it is larger than the sum of its proper divisors (532975599).

836130321 is a wasteful number, since it uses less digits than its factorization.

836130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376165 (or 376162 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 836130321 is about 28915.9181247976. The cubic root of 836130321 is about 942.0876796421.

Adding to 836130321 its reverse (123031638), we get a palindrome (959161959).

The spelling of 836130321 in words is "eight hundred thirty-six million, one hundred thirty thousand, three hundred twenty-one".