621404483 has 8 divisors (see below), whose sum is σ = 718733568. Its totient is φ = 526214664.

The previous prime is 621404473. The next prime is 621404491. The reversal of 621404483 is 384404126.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 621404483 - 2¹⁴ = 621388099 is a prime.

It is a super-2 number, since 2×621404483² = 772287062984994578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (621404423) 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, 534191 + ... + 535352.

It is an arithmetic number, because the mean of its divisors is an integer number (89841696).

Almost surely, 2^621404483 is an apocalyptic number.

621404483 is a deficient number, since it is larger than the sum of its proper divisors (97329085).

621404483 is a wasteful number, since it uses less digits than its factorization.

621404483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069633.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 621404483 is about 24927.9859395018. The cubic root of 621404483 is about 853.3452865791.

The spelling of 621404483 in words is "six hundred twenty-one million, four hundred four thousand, four hundred eighty-three".