836490 has 16 divisors (see below), whose sum is σ = 2007648. Its totient is φ = 223056.

The previous prime is 836477. The next prime is 836491. The reversal of 836490 is 94638.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 27883 = 836490 / (8 + 3 + 6 + 4 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (836491) by changing a digit.

836490 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13912 + ... + 13971.

It is an arithmetic number, because the mean of its divisors is an integer number (125478).

2⁸³⁶⁴⁹⁰ is an apocalyptic number.

836490 is an abundant number, since it is smaller than the sum of its proper divisors (1171158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

836490 is a wasteful number, since it uses less digits than its factorization.

836490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27893.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 836490 is about 914.5982724672. The cubic root of 836490 is about 94.2222746537. Note that the first 4 decimals are identical.

It can be divided in two parts, 836 and 490, that added together give a triangular number (1326 = T₅₁).

The spelling of 836490 in words is "eight hundred thirty-six thousand, four hundred ninety".