621748348 has 24 divisors (see below), whose sum is σ = 1178789472. Its totient is φ = 285238464.

The previous prime is 621748339. The next prime is 621748399. The reversal of 621748348 is 843847126.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27115 + ... + 44482.

It is an arithmetic number, because the mean of its divisors is an integer number (49116228).

Almost surely, 2^621748348 is an apocalyptic number.

It is an amenable number.

621748348 is a deficient number, since it is larger than the sum of its proper divisors (557041124).

621748348 is a wasteful number, since it uses less digits than its factorization.

621748348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71781 (or 71779 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 621748348 is about 24934.8821533209. The cubic root of 621748348 is about 853.5026620491.

The spelling of 621748348 in words is "six hundred twenty-one million, seven hundred forty-eight thousand, three hundred forty-eight".