621480008 has 32 divisors (see below), whose sum is σ = 1173744000. Its totient is φ = 308492160.

The previous prime is 621480001. The next prime is 621480023. The reversal of 621480008 is 800084126.

It is not an unprimeable number, because it can be changed into a prime (621480001) 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, 1091948 + ... + 1092516.

It is an arithmetic number, because the mean of its divisors is an integer number (36679500).

Almost surely, 2^621480008 is an apocalyptic number.

It is an amenable number.

621480008 is a deficient number, since it is larger than the sum of its proper divisors (552263992).

621480008 is a wasteful number, since it uses less digits than its factorization.

621480008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 621480008 is about 24929.5007571351. The cubic root of 621480008 is about 853.3798568114.

The spelling of 621480008 in words is "six hundred twenty-one million, four hundred eighty thousand, eight".