620411 has 4 divisors (see below), whose sum is σ = 676824. Its totient is φ = 564000.

The previous prime is 620401. The next prime is 620413. The reversal of 620411 is 114026.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-620411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620413) 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, 28190 + ... + 28211.

It is an arithmetic number, because the mean of its divisors is an integer number (169206).

2⁶²⁰⁴¹¹ is an apocalyptic number.

620411 is a deficient number, since it is larger than the sum of its proper divisors (56413).

620411 is a wasteful number, since it uses less digits than its factorization.

620411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56412.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 620411 is about 787.6617294245. The cubic root of 620411 is about 85.2890276322.

Adding to 620411 its reverse (114026), we get a palindrome (734437).

The spelling of 620411 in words is "six hundred twenty thousand, four hundred eleven".