621124066 has 8 divisors (see below), whose sum is σ = 949265244. Its totient is φ = 304702320.

The previous prime is 621124057. The next prime is 621124067. The reversal of 621124066 is 660421126.

It can be written as a sum of positive squares in 2 ways, for example, as 493772841 + 127351225 = 22221^2 + 11285^2 .

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

It is not an unprimeable number, because it can be changed into a prime (621124067) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2929725 + ... + 2929936.

Almost surely, 2^621124066 is an apocalyptic number.

621124066 is a deficient number, since it is larger than the sum of its proper divisors (328141178).

621124066 is a wasteful number, since it uses less digits than its factorization.

621124066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5859716.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 621124066 is about 24922.3607629775. The cubic root of 621124066 is about 853.2169061466.

The spelling of 621124066 in words is "six hundred twenty-one million, one hundred twenty-four thousand, sixty-six".