621858068 has 24 divisors (see below), whose sum is σ = 1233647520. Its totient is φ = 271905120.

The previous prime is 621858043. The next prime is 621858073. The reversal of 621858068 is 860858126.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313718 + ... + 315693.

It is an arithmetic number, because the mean of its divisors is an integer number (51401980).

Almost surely, 2^621858068 is an apocalyptic number.

It is an amenable number.

621858068 is a deficient number, since it is larger than the sum of its proper divisors (611789452).

621858068 is a wasteful number, since it uses less digits than its factorization.

621858068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629447 (or 629445 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 621858068 is about 24937.0821869761. The cubic root of 621858068 is about 853.5528649993.

The spelling of 621858068 in words is "six hundred twenty-one million, eight hundred fifty-eight thousand, sixty-eight".