621130471 has 8 divisors (see below), whose sum is σ = 669107264. Its totient is φ = 573181920.

The previous prime is 621130459. The next prime is 621130481. The reversal of 621130471 is 174031126.

621130471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 621130471 - 2⁹ = 621129959 is a prime.

It is a super-3 number, since 3×621130471³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621130421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69181 + ... + 77641.

It is an arithmetic number, because the mean of its divisors is an integer number (83638408).

Almost surely, 2^621130471 is an apocalyptic number.

621130471 is a deficient number, since it is larger than the sum of its proper divisors (47976793).

621130471 is a wasteful number, since it uses less digits than its factorization.

621130471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14121.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 621130471 is about 24922.4892617090. The cubic root of 621130471 is about 853.2198389131.

Adding to 621130471 its reverse (174031126), we get a palindrome (795161597).

The spelling of 621130471 in words is "six hundred twenty-one million, one hundred thirty thousand, four hundred seventy-one".