622784913 has 8 divisors (see below), whose sum is σ = 836354400. Its totient is φ = 412202688.

The previous prime is 622784909. The next prime is 622784933. The reversal of 622784913 is 319487226.

622784913 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 not a de Polignac number, because 622784913 - 2² = 622784909 is a prime.

It is a super-2 number, since 2×622784913² = 775722095720835138, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (622784933) 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, 746328 + ... + 747161.

It is an arithmetic number, because the mean of its divisors is an integer number (104544300).

Almost surely, 2^622784913 is an apocalyptic number.

It is an amenable number.

622784913 is a deficient number, since it is larger than the sum of its proper divisors (213569487).

622784913 is a wasteful number, since it uses less digits than its factorization.

622784913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493631.

The product of its digits is 145152, while the sum is 42.

The square root of 622784913 is about 24955.6589374034. The cubic root of 622784913 is about 853.9767122485.

The spelling of 622784913 in words is "six hundred twenty-two million, seven hundred eighty-four thousand, nine hundred thirteen".