622987872 has 48 divisors (see below), whose sum is σ = 1761142320. Its totient is φ = 191688192.

The previous prime is 622987861. The next prime is 622987877. The reversal of 622987872 is 278789226.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×622987872² = 776227777318176768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622987877) 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, 248347 + ... + 250842.

It is an arithmetic number, because the mean of its divisors is an integer number (36690465).

Almost surely, 2^622987872 is an apocalyptic number.

It is an amenable number.

622987872 is an abundant number, since it is smaller than the sum of its proper divisors (1138154448).

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

622987872 is a wasteful number, since it uses less digits than its factorization.

622987872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499215 (or 499207 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 622987872 is about 24959.7249984851. The cubic root of 622987872 is about 854.0694694917.

The spelling of 622987872 in words is "six hundred twenty-two million, nine hundred eighty-seven thousand, eight hundred seventy-two".