622693764 has 288 divisors, whose sum is σ = 2160345600. Its totient is φ = 152953920.

The previous prime is 622693763. The next prime is 622693777. The reversal of 622693764 is 467396226.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622693763) 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 95 ways as a sum of consecutive naturals, for example, 1105747 + ... + 1106309.

It is an arithmetic number, because the mean of its divisors is an integer number (7501200).

Almost surely, 2^622693764 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622693764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1080172800).

622693764 is an abundant number, since it is smaller than the sum of its proper divisors (1537651836).

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

622693764 is a wasteful number, since it uses less digits than its factorization.

622693764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 605 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 622693764 is about 24953.8326515187. The cubic root of 622693764 is about 853.9350483613.

The spelling of 622693764 in words is "six hundred twenty-two million, six hundred ninety-three thousand, seven hundred sixty-four".