620612 has 6 divisors (see below), whose sum is σ = 1086078. Its totient is φ = 310304.

The previous prime is 620603. The next prime is 620623. The reversal of 620612 is 216026.

It can be written as a sum of positive squares in only one way, i.e., 586756 + 33856 = 766^2 + 184^2 .

It is a plaindrome in base 14.

It is an unprimeable number.

620612 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 as a sum of consecutive naturals, namely, 77573 + ... + 77580.

It is an arithmetic number, because the mean of its divisors is an integer number (181013).

2⁶²⁰⁶¹² is an apocalyptic number.

It is an amenable number.

620612 is a deficient number, since it is larger than the sum of its proper divisors (465466).

620612 is a wasteful number, since it uses less digits than its factorization.

620612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155157 (or 155155 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 620612 is about 787.7893119356. The cubic root of 620612 is about 85.2982372494.

Adding to 620612 its reverse (216026), we get a palindrome (836638).

The spelling of 620612 in words is "six hundred twenty thousand, six hundred twelve".