621412 has 24 divisors (see below), whose sum is σ = 1229760. Its totient is φ = 272160.

The previous prime is 621389. The next prime is 621419. The reversal of 621412 is 214126.

It is a plaindrome in base 13 and base 14.

It is not an unprimeable number, because it can be changed into a prime (621419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033 + ... + 1519.

It is an arithmetic number, because the mean of its divisors is an integer number (51240).

2⁶²¹⁴¹² is an apocalyptic number.

It is an amenable number.

621412 is a deficient number, since it is larger than the sum of its proper divisors (608348).

621412 is a wasteful number, since it uses less digits than its factorization.

621412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531 (or 529 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 621412 is about 788.2968983828. The cubic root of 621412 is about 85.3348727478.

Adding to 621412 its reverse (214126), we get a palindrome (835538).

It can be divided in two parts, 6214 and 12, that added together give a palindrome (6226).

The spelling of 621412 in words is "six hundred twenty-one thousand, four hundred twelve".