621230673 has 24 divisors (see below), whose sum is σ = 967838112. Its totient is φ = 353406144.

The previous prime is 621230639. The next prime is 621230693. The reversal of 621230673 is 376032126.

It is not a de Polignac number, because 621230673 - 2¹⁶ = 621165137 is a prime.

It is a super-3 number, since 3×621230673³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 621230673.

It is not an unprimeable number, because it can be changed into a prime (621230693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24061 + ... + 42677.

It is an arithmetic number, because the mean of its divisors is an integer number (40326588).

Almost surely, 2^621230673 is an apocalyptic number.

It is an amenable number.

621230673 is a deficient number, since it is larger than the sum of its proper divisors (346607439).

621230673 is a wasteful number, since it uses less digits than its factorization.

621230673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18861 (or 18854 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 621230673 is about 24924.4994533491. The cubic root of 621230673 is about 853.2657174852.

Adding to 621230673 its reverse (376032126), we get a palindrome (997262799).

The spelling of 621230673 in words is "six hundred twenty-one million, two hundred thirty thousand, six hundred seventy-three".