621034005 has 16 divisors (see below), whose sum is σ = 1025708544. Its totient is φ = 320533440.

The previous prime is 621033991. The next prime is 621034009. The reversal of 621034005 is 500430126.

It is a happy number.

It is not a de Polignac number, because 621034005 - 2¹³ = 621025813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621034009) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 667314 + ... + 668243.

It is an arithmetic number, because the mean of its divisors is an integer number (64106784).

Almost surely, 2^621034005 is an apocalyptic number.

It is an amenable number.

621034005 is a deficient number, since it is larger than the sum of its proper divisors (404674539).

621034005 is a wasteful number, since it uses less digits than its factorization.

621034005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335596.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 621034005 is about 24920.5538662366. The cubic root of 621034005 is about 853.1756662472.

The spelling of 621034005 in words is "six hundred twenty-one million, thirty-four thousand, five".