806490 has 64 divisors (see below), whose sum is σ = 2246400. Its totient is φ = 205632.

The previous prime is 806483. The next prime is 806503. The reversal of 806490 is 94608.

806490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×806490² = 1300852240200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

806490 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 31 ways as a sum of consecutive naturals, for example, 7779 + ... + 7881.

It is an arithmetic number, because the mean of its divisors is an integer number (35100).

2⁸⁰⁶⁴⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 806490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1123200).

806490 is an abundant number, since it is smaller than the sum of its proper divisors (1439910).

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

806490 is a wasteful number, since it uses less digits than its factorization.

806490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 806490 is about 898.0478829105. The cubic root of 806490 is about 93.0821334774.

It can be divided in two parts, 806 and 490, that added together give a 4-th power (1296 = 6⁴).

The spelling of 806490 in words is "eight hundred six thousand, four hundred ninety".