620801 has 4 divisors (see below), whose sum is σ = 622512. Its totient is φ = 619092.

The previous prime is 620777. The next prime is 620813. The reversal of 620801 is 108026.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108026 = 2 ⋅54013.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620801 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 620801.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71 + ... + 1116.

It is an arithmetic number, because the mean of its divisors is an integer number (155628).

2⁶²⁰⁸⁰¹ is an apocalyptic number.

It is an amenable number.

620801 is a deficient number, since it is larger than the sum of its proper divisors (1711).

620801 is a wasteful number, since it uses less digits than its factorization.

620801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710.

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

The square root of 620801 is about 787.9092587348. The cubic root of 620801 is about 85.3068952250.

Adding to 620801 its reverse (108026), we get a palindrome (728827).

The spelling of 620801 in words is "six hundred twenty thousand, eight hundred one".