620826 has 8 divisors (see below), whose sum is σ = 1241664. Its totient is φ = 206940.

The previous prime is 620821. The next prime is 620827. The reversal of 620826 is 628026.

620826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

620826 is an admirable number.

It is an Ulam number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 620796 and 620805.

It is not an unprimeable number, because it can be changed into a prime (620821) by changing a digit.

620826 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 3 ways as a sum of consecutive naturals, for example, 51730 + ... + 51741.

It is an arithmetic number, because the mean of its divisors is an integer number (155208).

2⁶²⁰⁸²⁶ is an apocalyptic number.

620826 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

620826 is a wasteful number, since it uses less digits than its factorization.

620826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103476.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 620826 is about 787.9251233461. The cubic root of 620826 is about 85.3080403283.

The spelling of 620826 in words is "six hundred twenty thousand, eight hundred twenty-six".