622647964 has 12 divisors (see below), whose sum is σ = 1095655288. Its totient is φ = 309603600.

The previous prime is 622647943. The next prime is 622647979. The reversal of 622647964 is 469746226.

622647964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429282 + ... + 430729.

Almost surely, 2^622647964 is an apocalyptic number.

It is an amenable number.

622647964 is a deficient number, since it is larger than the sum of its proper divisors (473007324).

622647964 is a wasteful number, since it uses less digits than its factorization.

622647964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860196 (or 860194 counting only the distinct ones).

The product of its digits is 870912, while the sum is 46.

The square root of 622647964 is about 24952.9149399424. The cubic root of 622647964 is about 853.9141118076.

The spelling of 622647964 in words is "six hundred twenty-two million, six hundred forty-seven thousand, nine hundred sixty-four".