622640463 has 8 divisors (see below), whose sum is σ = 830468400. Its totient is φ = 414953088.

The previous prime is 622640461. The next prime is 622640471. The reversal of 622640463 is 364046226.

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

It is not a de Polignac number, because 622640463 - 2¹ = 622640461 is a prime.

It is a super-3 number, since 3×622640463³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622640461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24328 + ... + 42861.

It is an arithmetic number, because the mean of its divisors is an integer number (103808550).

Almost surely, 2^622640463 is an apocalyptic number.

622640463 is a deficient number, since it is larger than the sum of its proper divisors (207827937).

622640463 is a wasteful number, since it uses less digits than its factorization.

622640463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70281.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 622640463 is about 24952.7646364085. The cubic root of 622640463 is about 853.9106827777.

Adding to 622640463 its reverse (364046226), we get a palindrome (986686689).

The spelling of 622640463 in words is "six hundred twenty-two million, six hundred forty thousand, four hundred sixty-three".