621411967 has 8 divisors (see below), whose sum is σ = 713583360. Its totient is φ = 535187160.

The previous prime is 621411887. The next prime is 621411977. The reversal of 621411967 is 769114126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 621411967 - 2⁷ = 621411839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621411977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1486423 + ... + 1486840.

It is an arithmetic number, because the mean of its divisors is an integer number (89197920).

Almost surely, 2^621411967 is an apocalyptic number.

621411967 is a deficient number, since it is larger than the sum of its proper divisors (92171393).

621411967 is a wasteful number, since it uses less digits than its factorization.

621411967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2973293.

The product of its digits is 18144, while the sum is 37.

The square root of 621411967 is about 24928.1360514580. The cubic root of 621411967 is about 853.3487123727.

It can be divided in two parts, 6214 and 11967, that added together give a palindrome (18181).

The spelling of 621411967 in words is "six hundred twenty-one million, four hundred eleven thousand, nine hundred sixty-seven".