620620101 has 12 divisors (see below), whose sum is σ = 915525312. Its totient is φ = 404943336.

The previous prime is 620620087. The next prime is 620620111. The reversal of 620620101 is 101026026.

It is a happy number.

It is not a de Polignac number, because 620620101 - 2⁷ = 620619973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620620111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 733171 + ... + 734016.

It is an arithmetic number, because the mean of its divisors is an integer number (76293776).

Almost surely, 2^620620101 is an apocalyptic number.

It is an amenable number.

620620101 is a deficient number, since it is larger than the sum of its proper divisors (294905211).

620620101 is a wasteful number, since it uses less digits than its factorization.

620620101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467240 (or 1467237 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 620620101 is about 24912.2480117712. The cubic root of 620620101 is about 852.9860838740.

Adding to 620620101 its reverse (101026026), we get a palindrome (721646127).

The spelling of 620620101 in words is "six hundred twenty million, six hundred twenty thousand, one hundred one".