621414 has 48 divisors (see below), whose sum is σ = 1497600. Its totient is φ = 185328.

The previous prime is 621389. The next prime is 621419. The reversal of 621414 is 414126.

621414 is a `hidden beast` number, since 621 + 41 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 621414.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7827 + ... + 7905.

It is an arithmetic number, because the mean of its divisors is an integer number (31200).

2⁶²¹⁴¹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 621414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (748800).

621414 is an abundant number, since it is smaller than the sum of its proper divisors (876186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

621414 is a wasteful number, since it uses less digits than its factorization.

621414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 126 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 621414 is about 788.2981669394. The cubic root of 621414 is about 85.3349642972.

It can be divided in two parts, 621 and 414, that added together give a triangular number (1035 = T₄₅).

The spelling of 621414 in words is "six hundred twenty-one thousand, four hundred fourteen".