801620 has 24 divisors (see below), whose sum is σ = 1701000. Its totient is φ = 317312.

The previous prime is 801617. The next prime is 801631. The reversal of 801620 is 26108.

801620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 20164 + 781456 = 142^2 + 884^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2846 + ... + 3114.

It is an arithmetic number, because the mean of its divisors is an integer number (70875).

2⁸⁰¹⁶²⁰ is an apocalyptic number.

It is an amenable number.

801620 is an abundant number, since it is smaller than the sum of its proper divisors (899380).

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

801620 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (801619) it forms an eRAP, since the sums of their prime factors are consecutive (426 and 427).

801620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 801620 is about 895.3323405306. The cubic root of 801620 is about 92.8943958726.

Adding to 801620 its reverse (26108), we get a palindrome (827728).

It can be divided in two parts, 80 and 1620, that multiplied together give a square (129600 = 360²).

The spelling of 801620 in words is "eight hundred one thousand, six hundred twenty".